diff --git a/pygrt/C_extension/include/grt.h b/pygrt/C_extension/include/grt.h
index c21ee300..47467f94 100644
--- a/pygrt/C_extension/include/grt.h
+++ b/pygrt/C_extension/include/grt.h
@@ -43,7 +43,6 @@
 #include "grt/dynamic/grn.h"
 #include "grt/dynamic/grnspec.h"
 #include "grt/dynamic/layer.h"
-#include "grt/dynamic/dyn_postprocess.h"
 #include "grt/dynamic/signals.h"
 #include "grt/dynamic/source.h"
 
@@ -59,7 +58,6 @@
 
 #include "grt/static/static_grn.h"
 #include "grt/static/static_layer.h"
-#include "grt/static/static_postprocess.h"
 #include "grt/static/static_source.h"
 
 
diff --git a/pygrt/C_extension/include/grt/dynamic/dyn_postprocess.h b/pygrt/C_extension/include/grt/dynamic/dyn_postprocess.h
deleted file mode 100644
index 459d66e5..00000000
--- a/pygrt/C_extension/include/grt/dynamic/dyn_postprocess.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/**
- * @file   dyn_postprocess.h
- * @brief  动态位移偏导后处理（应力/应变/旋转）
- * @date   2026-07
- */
-
-#pragma once
-
-#include "grt/common/const.h"
-
-/**
- * 由动态位移偏导合成应变张量。
- * 数组布局：u[分量][采样点]、upar[偏导方向][分量][采样点]、
- * res[第二分量][第一分量][采样点]。
- *
- * ZRT 联络项：r≠0 用 u/r；r=0 改用 ∂_r u（upar[1][*]），
- * 与 syn 中轴点处 (1/r)∂_θ 有限部分配套。
- */
-void grt_compute_strain(
-    size_t npts, float dist, float *const u[GRT_CHANNEL_NUM],
-    float *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
-    float *const res[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM], bool rot2ZNE);
-
-/** 由动态位移偏导合成旋转张量。数组布局同 grt_compute_strain()。 */
-void grt_compute_rotation(
-    size_t npts, float dist, float *const u[GRT_CHANNEL_NUM],
-    float *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
-    float *const res[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM], bool rot2ZNE);
-
-/**
- * 在频域由动态位移偏导合成应力张量。
- * 介质参数约定与命令行 stress 子模块的 SAC 头段一致。
- */
-void grt_compute_stress(
-    size_t npts, float dt, float dist, float va, float vb, float rho,
-    float Qainv, float Qbinv, float *const u[GRT_CHANNEL_NUM],
-    float *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
-    float *const res[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM], bool rot2ZNE);
diff --git a/pygrt/C_extension/include/grt/dynamic/grn.h b/pygrt/C_extension/include/grt/dynamic/grn.h
index 629c3150..dd4cbed9 100755
--- a/pygrt/C_extension/include/grt/dynamic/grn.h
+++ b/pygrt/C_extension/include/grt/dynamic/grn.h
@@ -19,7 +19,7 @@
 #include "grt/integral/integ_process.h"
 
 /**
- * 积分计算Z, R, T三个分量格林函数的频谱的核心函数（被Python调用）  
+ * 积分计算Z, R, T三个分量格林函数的频谱的核心函数
  * 
  * @param[in,out]   mod1d            `MODEL1D` 结构体指针 
  * @param[in,out]   Kproc             波数积分相关参数的结构体指针
diff --git a/pygrt/C_extension/include/grt/dynamic/signals.h b/pygrt/C_extension/include/grt/dynamic/signals.h
index edf4bb71..3d7ecd4c 100644
--- a/pygrt/C_extension/include/grt/dynamic/signals.h
+++ b/pygrt/C_extension/include/grt/dynamic/signals.h
@@ -173,7 +173,7 @@ float * grt_get_ricker_wave(float dt, float f0, int *Nt);
 float * grt_get_custom_wave(int *Nt, const char *tfparams);
 
 /**
- * 专用于在Python端释放C中申请的内存
+ * 释放 C 侧 malloc 的一维数组
  * 
  * @param[out]     pt    指针
  */
diff --git a/pygrt/C_extension/include/grt/static/static_postprocess.h b/pygrt/C_extension/include/grt/static/static_postprocess.h
deleted file mode 100644
index 68a2ed46..00000000
--- a/pygrt/C_extension/include/grt/static/static_postprocess.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/**
- * @file   static_postprocess.h
- * @brief  静态位移偏导后处理（应力/应变/旋转）
- * @date   2026-07
- */
-
-#pragma once
-
-#include "grt/common/const.h"
-
-/**
- * 由静态位移偏导合成对称应力张量。
- *
- * 数组布局：u[分量][点]、upar[偏导方向][分量][点]、
- * res[第二分量][第一分量][点]。仅写入 res 的上三角分量。
- *
- * ZRT 联络项：r≠0 用 u/r；r=0 改用 ∂_r u（upar[1][*]），
- * 与 syn 中轴点处 (1/r)∂_θ 有限部分配套。
- */
-void grt_static_compute_stress(
-    size_t nnorth, size_t neast, const real_t *norths, const real_t *easts,
-    real_t *const u[GRT_CHANNEL_NUM],
-    real_t *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
-    real_t *const res[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
-    bool rot2ZNE, real_t mu, real_t lam);
-
-/**
- * 由静态位移偏导合成对称应变张量。
- * 数组布局同 grt_static_compute_stress()。
- */
-void grt_static_compute_strain(
-    size_t nnorth, size_t neast, const real_t *norths, const real_t *easts,
-    real_t *const u[GRT_CHANNEL_NUM],
-    real_t *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
-    real_t *const res[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM], bool rot2ZNE);
-
-/**
- * 由静态位移偏导合成反对称旋转张量。
- * 数组布局同 grt_static_compute_stress()。仅写入 res 的非对角分量。
- */
-void grt_static_compute_rotation(
-    size_t nnorth, size_t neast, const real_t *norths, const real_t *easts,
-    real_t *const u[GRT_CHANNEL_NUM],
-    real_t *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
-    real_t *const res[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM], bool rot2ZNE);
diff --git a/pygrt/C_extension/src/dynamic/grt_greenfn.c b/pygrt/C_extension/src/dynamic/grt_greenfn.c
index 11166664..adf04d58 100644
--- a/pygrt/C_extension/src/dynamic/grt_greenfn.c
+++ b/pygrt/C_extension/src/dynamic/grt_greenfn.c
@@ -53,13 +53,8 @@ typedef struct {
     struct {
         bool active;
         size_t nt;
-        size_t nf;
         real_t dt;
-        real_t df;
-        real_t winT;  ///< 时窗长度 
-        real_t zeta;  ///< 虚频率系数， w <- w - zeta*PI/r* 1j
-        real_t wI;    ///< 虚频率  zeta*PI/r
-        real_t *freqs;
+        real_t zeta;  ///< 虚频率系数， w <- w - zeta*PI/T * 1j
         size_t upsample_n;  ///< 升采样倍数
         bool keepAllFreq;    ///< 计算所有频率，不论频率多低
         bool skipImagComps;  ///< 跳过虚频率的补偿
@@ -74,8 +69,6 @@ typedef struct {
         bool active;
         real_t freq1;
         real_t freq2;
-        size_t nf1;
-        size_t nf2;
     } H;
     /** 波数积分间隔以及方法 */
     struct {
@@ -163,9 +156,6 @@ static void free_Ctrl(GRT_MODULE_CTRL *Ctrl){
     GRT_SAFE_FREE_PTR(Ctrl->D.s_depsrc);
     GRT_SAFE_FREE_PTR(Ctrl->D.s_deprcv);
 
-    // N
-    GRT_SAFE_FREE_PTR(Ctrl->N.freqs);
-
     // O
     GRT_SAFE_FREE_PTR(Ctrl->O.s_output_dir);
 
@@ -851,11 +841,11 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
 
 
 /**
- * 频谱积分前的共享准备：自动 Length、wI、频点网格、nf1/nf2、填充 KPROC 与 GRNSPEC 元数据。
- * grn->freqs 由本函数 malloc，调用方负责释放；grn->rs 借用调用方指针。
- * 不分配 u/uiz/uir，不处理 stats 路径。
+ * 频谱积分前准备：自动 Length、wI、频点网格、nf1/nf2、填充 KPROC 与 GRNSPEC 元数据
+ * grn->freqs 由本函数 malloc，调用方负责释放；grn->rs 借用调用方指针
+ * 不分配 u/uiz/uir，不处理 stats 路径
  */
-void grt_prepare_grn_spec(
+static void prepare_grn_spec(
     MODEL1D *mod1d,
     size_t nr, real_t *rs,
     size_t nt, real_t dt, real_t zeta, bool keepAllFreq,
@@ -989,7 +979,7 @@ int greenfn_main(int argc, char **argv) {
     K_INTEG_PROCESS KPROC = {0};
     GRNSPEC grn_storage = {0};
     GRNSPEC *grn = &grn_storage;
-    grt_prepare_grn_spec(
+    prepare_grn_spec(
         mod1d,
         Ctrl->R.nr, Ctrl->R.rs,
         Ctrl->N.nt, Ctrl->N.dt, Ctrl->N.zeta, Ctrl->N.keepAllFreq,
@@ -1004,19 +994,12 @@ int greenfn_main(int argc, char **argv) {
         Ctrl->e.active,
         &KPROC, grn);
 
-    // 写回 Ctrl，供后续 IFFT/SAC/free_Ctrl 使用
-    Ctrl->N.winT = Ctrl->N.nt * Ctrl->N.dt;
-    Ctrl->N.nf = grn->nf;
-    Ctrl->N.df = 1.0 / Ctrl->N.winT;
-    Ctrl->N.freqs = grn->freqs;
-    Ctrl->N.wI = grn->wI;
-    Ctrl->H.nf1 = grn->nf1;
-    Ctrl->H.nf2 = grn->nf2;
+    real_t df = 1.0 / (Ctrl->N.nt * Ctrl->N.dt);
 
     // 如果只传入了 -S, 未指定索引，则默认所有频率索引
     if(Ctrl->S.active && Ctrl->S.statsidxs == NULL){
         // 另外两个字符相关的指针仍指向 NULL
-        Ctrl->S.nstatsidxs = Ctrl->N.nf;
+        Ctrl->S.nstatsidxs = grn->nf;
         Ctrl->S.statsidxs = (size_t*)realloc(Ctrl->S.statsidxs, sizeof(size_t)*(Ctrl->S.nstatsidxs));
         for(size_t i=0; i < Ctrl->S.nstatsidxs; ++i){
             Ctrl->S.statsidxs[i] = i;
@@ -1047,7 +1030,7 @@ int greenfn_main(int argc, char **argv) {
 
     // 使用fftw3做反傅里叶变换，并保存到 SAC 
     // 其中考虑了升采样倍数
-    GRT_FFTW_HOLDER *fh = grt_create_fftw_holder_C2R_1D(Ctrl->N.nt*Ctrl->N.upsample_n, Ctrl->N.dt/Ctrl->N.upsample_n, Ctrl->N.nf, Ctrl->N.df);
+    GRT_FFTW_HOLDER *fh = grt_create_fftw_holder_C2R_1D(Ctrl->N.nt*Ctrl->N.upsample_n, Ctrl->N.dt/Ctrl->N.upsample_n, grn->nf, df);
 
     // 建立 SAC 文件原型，包含必要的头变量
     SACTRACE *sac = grt_new_SACTRACE(fh->dt, fh->nt, 0.0);
@@ -1058,7 +1041,7 @@ int greenfn_main(int argc, char **argv) {
     sac->hd.evdp = Ctrl->D.depsrc; // km
     sac->hd.stel = (-1.0)*Ctrl->D.deprcv*1e3; // m
     // 写入虚频率
-    sac->hd.user0 = Ctrl->N.wI;
+    sac->hd.user0 = grn->wI;
     // 写入接受点的Vp,Vs,rho
     sac->hd.user1 = mod1d->Va[mod1d->ircv];
     sac->hd.user2 = mod1d->Vb[mod1d->ircv];
@@ -1112,6 +1095,7 @@ int greenfn_main(int argc, char **argv) {
 
     // 释放内存
     grt_grnspec_free_u(grn);
+    GRT_SAFE_FREE_PTR(grn->freqs);
     GRT_SAFE_FREE_PTR(travtPS);
     GRT_SAFE_FREE_PTR(begintimes);
     grt_free_SACTRACE(sac);
diff --git a/pygrt/C_extension/src/dynamic/grt_rotation.c b/pygrt/C_extension/src/dynamic/grt_rotation.c
index d983e579..c4186408 100644
--- a/pygrt/C_extension/src/dynamic/grt_rotation.c
+++ b/pygrt/C_extension/src/dynamic/grt_rotation.c
@@ -51,7 +51,8 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
     GRTCheckOptionSet(argc > 1);
 }
 
-void grt_compute_rotation(
+/** 由位移偏导合成旋转张量 */
+static void compute_rotation(
     size_t npts, float dist, float *const u[GRT_CHANNEL_NUM],
     float *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
     float *const res[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM], bool rot2ZNE)
@@ -131,7 +132,7 @@ int rotation_main(int argc, char **argv){
             res[c2][c] = calloc(npts, sizeof(*res[c2][c]));
         }
     }
-    grt_compute_rotation(npts, dist, u, upar, res, rot2ZNE);
+    compute_rotation(npts, dist, u, upar, res, rot2ZNE);
 
     // 写出3个分量
     for(int i1=0; i1<2; ++i1){
diff --git a/pygrt/C_extension/src/dynamic/grt_strain.c b/pygrt/C_extension/src/dynamic/grt_strain.c
index 2d098c85..11074c4a 100644
--- a/pygrt/C_extension/src/dynamic/grt_strain.c
+++ b/pygrt/C_extension/src/dynamic/grt_strain.c
@@ -49,7 +49,8 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
     GRTCheckOptionSet(argc > 1);
 }
 
-void grt_compute_strain(
+/** 由位移偏导合成应变张量 */
+static void compute_strain(
     size_t npts, float dist, float *const u[GRT_CHANNEL_NUM],
     float *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
     float *const res[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM], bool rot2ZNE)
@@ -133,7 +134,7 @@ int strain_main(int argc, char **argv){
             res[c2][c] = calloc(npts, sizeof(*res[c2][c]));
         }
     }
-    grt_compute_strain(npts, dist, u, upar, res, rot2ZNE);
+    compute_strain(npts, dist, u, upar, res, rot2ZNE);
 
     // 写出6个分量
     for(int i1=0; i1<3; ++i1){
diff --git a/pygrt/C_extension/src/dynamic/grt_stress.c b/pygrt/C_extension/src/dynamic/grt_stress.c
index e1a40388..63c4ea05 100644
--- a/pygrt/C_extension/src/dynamic/grt_stress.c
+++ b/pygrt/C_extension/src/dynamic/grt_stress.c
@@ -51,7 +51,8 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
     GRTCheckOptionSet(argc > 1);
 }
 
-void grt_compute_stress(
+/** 在频域由位移偏导合成应力张量 */
+static void compute_stress(
     size_t npts, float dt, float dist, float va, float vb, float rho,
     float Qainv, float Qbinv, float *const u[GRT_CHANNEL_NUM],
     float *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
@@ -201,7 +202,7 @@ int stress_main(int argc, char **argv){
             res[c2][c] = calloc(npts, sizeof(*res[c2][c]));
         }
     }
-    grt_compute_stress(npts, dt, dist, va, vb, rho, Qainv, Qbinv, u, upar, res, rot2ZNE);
+    compute_stress(npts, dt, dist, va, vb, rho, Qainv, Qbinv, u, upar, res, rot2ZNE);
 
     // 写出6个分量
     for(int i1=0; i1<3; ++i1){
diff --git a/pygrt/C_extension/src/dynamic/grt_syn.c b/pygrt/C_extension/src/dynamic/grt_syn.c
index a705e8b6..bcf146c0 100644
--- a/pygrt/C_extension/src/dynamic/grt_syn.c
+++ b/pygrt/C_extension/src/dynamic/grt_syn.c
@@ -531,18 +531,18 @@ static void syn_accum_from_gf(
 
 
 /**
- * 由动态格林函数合成三分量地震图（及可选空间偏导）。
+ * 由动态格林函数合成三分量地震图（及可选空间偏导）
  *
  * 数组布局：gf[震源][分量][采样点]、syn[分量][采样点]、
  * syn_upar[偏导方向][分量][采样点]。gf_uiz/gf_uir 在 calc_upar=false
- * 时可传 NULL；单个分量指针为 NULL 时跳过该道。
+ * 时可传 NULL；单个分量指针为 NULL 时跳过该道
  *
  * r=0 时强制 *azrad=0（e_r→N、e_θ→E）并告警；
- * 并用 ∂_r 格林函数合成 (1/r)∂_θ 的有限部分（见函数内注释）。
+ * 并用 ∂_r 格林函数合成 (1/r)∂_θ 的有限部分（见函数内注释）
  *
  * @param[in,out]  azrad     方位角（弧度）；r=0 时写回 0
  */
-void grt_syn_from_gf(
+static void syn_from_gf(
     size_t npts, float dist,
     const pfloatChnlGrid gf, const pfloatChnlGrid gf_uiz, const pfloatChnlGrid gf_uir,
     GRT_SYN_TYPE computeType, real_t M0, real_t VpVs_ratio, real_t *azrad,
@@ -768,7 +768,7 @@ int syn_main(int argc, char **argv)
         }
     }
 
-    grt_syn_from_gf(
+    syn_from_gf(
         (size_t)npts, Ctrl->dist,
         gf, calc_upar ? gf_uiz : NULL, calc_upar ? gf_uir : NULL,
         Ctrl->computeType, Ctrl->S.M0, Ctrl->VpVs_ratio, &Ctrl->A.azrad, Ctrl->mchn,
diff --git a/pygrt/C_extension/src/static/grt_static_greenfn.c b/pygrt/C_extension/src/static/grt_static_greenfn.c
index a8d1659f..a2d5aa26 100644
--- a/pygrt/C_extension/src/static/grt_static_greenfn.c
+++ b/pygrt/C_extension/src/static/grt_static_greenfn.c
@@ -567,10 +567,10 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
 
 
 /**
- * 静态积分前准备：默认 Length，填充 K_INTEG_PROCESS。
- * 不分配输出缓冲，不处理 stats 路径。
+ * 静态积分前准备：默认 Length，填充 K_INTEG_PROCESS
+ * 不分配输出缓冲，不处理 stats 路径
  */
-void grt_prepare_static_grn(
+static void prepare_static_grn(
     MODEL1D *mod1d,
     size_t nr, real_t *rs,
     real_t Length,
@@ -649,7 +649,7 @@ int static_greenfn_main(int argc, char **argv){
     realChnlGrid *grn_uir = (Ctrl->e.active)? (realChnlGrid *) calloc(Ctrl->nr, sizeof(*grn_uir)) : NULL;
 
     K_INTEG_PROCESS KPROC = {0};
-    grt_prepare_static_grn(
+    prepare_static_grn(
         mod1d,
         Ctrl->nr, Ctrl->rs,
         Ctrl->L.Length,
diff --git a/pygrt/C_extension/src/static/grt_static_rotation.c b/pygrt/C_extension/src/static/grt_static_rotation.c
index 0485753a..50461383 100644
--- a/pygrt/C_extension/src/static/grt_static_rotation.c
+++ b/pygrt/C_extension/src/static/grt_static_rotation.c
@@ -49,7 +49,8 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
     // 暂不支持设置其它参数
 }
 
-void grt_static_compute_rotation(
+/** 由静态位移偏导合成旋转张量 */
+static void compute_rotation(
     size_t nnorth, size_t neast, const real_t *norths, const real_t *easts,
     real_t *const u[GRT_CHANNEL_NUM],
     real_t *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
@@ -186,7 +187,7 @@ int static_rotation_main(int argc, char **argv){
         }
     }
 
-    grt_static_compute_rotation(nnorth, neast, norths, easts, u, upar, res, rot2ZNE);
+    compute_rotation(nnorth, neast, norths, easts, u, upar, res, rot2ZNE);
 
     // 写入 nc 文件
     for(int c=0; c<GRT_CHANNEL_NUM; ++c){
diff --git a/pygrt/C_extension/src/static/grt_static_strain.c b/pygrt/C_extension/src/static/grt_static_strain.c
index 66e508e8..5136be5b 100644
--- a/pygrt/C_extension/src/static/grt_static_strain.c
+++ b/pygrt/C_extension/src/static/grt_static_strain.c
@@ -47,7 +47,8 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
     // 暂不支持设置其它参数
 }
 
-void grt_static_compute_strain(
+/** 由静态位移偏导合成应变张量 */
+static void compute_strain(
     size_t nnorth, size_t neast, const real_t *norths, const real_t *easts,
     real_t *const u[GRT_CHANNEL_NUM],
     real_t *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
@@ -188,7 +189,7 @@ int static_strain_main(int argc, char **argv){
         }
     }
 
-    grt_static_compute_strain(nnorth, neast, norths, easts, u, upar, res, rot2ZNE);
+    compute_strain(nnorth, neast, norths, easts, u, upar, res, rot2ZNE);
 
     // 写入 nc 文件
     for(int c=0; c<GRT_CHANNEL_NUM; ++c){
diff --git a/pygrt/C_extension/src/static/grt_static_stress.c b/pygrt/C_extension/src/static/grt_static_stress.c
index 631e2c27..50de7313 100644
--- a/pygrt/C_extension/src/static/grt_static_stress.c
+++ b/pygrt/C_extension/src/static/grt_static_stress.c
@@ -48,7 +48,8 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
     // 暂不支持设置其它参数
 }
 
-void grt_static_compute_stress(
+/** 由静态位移偏导合成应力张量 */
+static void compute_stress(
     size_t nnorth, size_t neast, const real_t *norths, const real_t *easts,
     real_t *const u[GRT_CHANNEL_NUM],
     real_t *const upar[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM],
@@ -206,7 +207,7 @@ int static_stress_main(int argc, char **argv){
         }
     }
     
-    grt_static_compute_stress(nnorth, neast, norths, easts, u, upar, res, rot2ZNE, rcv_mu, rcv_lam);
+    compute_stress(nnorth, neast, norths, easts, u, upar, res, rot2ZNE, rcv_mu, rcv_lam);
 
     // 写入 nc 文件
     for(int c=0; c<GRT_CHANNEL_NUM; ++c){
diff --git a/pygrt/C_extension/src/static/grt_static_syn.c b/pygrt/C_extension/src/static/grt_static_syn.c
index a5923cd9..ef382506 100644
--- a/pygrt/C_extension/src/static/grt_static_syn.c
+++ b/pygrt/C_extension/src/static/grt_static_syn.c
@@ -393,8 +393,7 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
 
 
 /**
- * 在单个震中距点上，由静态格林函数合成三分量（及可选空间偏导）。
- * 逻辑对应动态解的 grt_syn_from_gf，但数据为标量场而非时序。
+ * 在单个震中距点上，由静态格林函数合成三分量（及可选空间偏导）
  */
 static void static_syn_from_gf_one(
     real_t azrad, size_t ir_pick, real_t dist0,
@@ -468,16 +467,15 @@ static void static_syn_from_gf_one(
 
 
 /**
- * 由静态格林函数合成三分量位移场（及可选空间偏导）。
+ * 由静态格林函数合成三分量位移场（及可选空间偏导）
  *
- * 对应动态解的 grt_syn_from_gf。输入 nc 虽以 north/east 存储，
- * 合成时按 r=hypot(north,east) 做一维震中距插值；可换到新的接收点
- * north/east 网格。r=0 时强制方位角为 0（e_r→N、e_θ→E）
+ * 输入 nc 虽以 north/east 存储，合成时按 r=hypot(north,east) 做一维震中距插值；
+ * 可换到新的接收点 north/east 网格。r=0 时强制方位角为 0（e_r→N、e_θ→E）
  *
  * 数组布局：u[采样点][震源][分量]、syn[接收点][分量]、
  * syn_upar[接收点][偏导方向][分量]。uiz/uir 在 calc_upar=false 时可传 NULL
  */
-void grt_static_syn_from_gf(
+static void static_syn_from_gf(
     size_t nnorth0, const real_t *norths0, size_t neast0, const real_t *easts0,
     size_t nnorth, const real_t *norths, size_t neast, const real_t *easts,
     const realChnlGrid *u, const realChnlGrid *uiz, const realChnlGrid *uir,
@@ -770,7 +768,7 @@ int static_syn_main(int argc, char **argv){
     real_t (*syn)[GRT_CHANNEL_NUM] = (real_t (*)[GRT_CHANNEL_NUM])calloc(nr, sizeof(real_t)*GRT_CHANNEL_NUM);
     real_t (*syn_upar)[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM] = (real_t (*)[GRT_CHANNEL_NUM][GRT_CHANNEL_NUM])calloc(nr, sizeof(real_t)*GRT_CHANNEL_NUM*GRT_CHANNEL_NUM);
     
-    grt_static_syn_from_gf(
+    static_syn_from_gf(
         nnorth0, norths0, neast0, easts0, 
         nnorth, norths, neast, easts, 
         grn, grn_uiz, grn_uir,