diff --git a/Src/nmNum/nmSubWnd/nmSubWndMain.cpp b/Src/nmNum/nmSubWnd/nmSubWndMain.cpp
index 85cc8ef4..17e160b4 100644
--- a/Src/nmNum/nmSubWnd/nmSubWndMain.cpp
+++ b/Src/nmNum/nmSubWnd/nmSubWndMain.cpp
@@ -134,14 +134,10 @@ void clearResultCurveDataTables(iGuiPlot* plot)
 void resetResultDialog(QDialog* window)
 {
     if(!window) return;
-    // 最小化窗口在隐藏重绘前恢复正常尺寸，避免小图标尺寸成为下次显示尺寸。
-    const bool minimized = window->isMinimized();
-    const QRect normalGeometry = window->normalGeometry();
-    window->hide();
-    if(minimized) {
+    // 先恢复最小化状态再隐藏，避免隐藏后调整尺寸使系统重新显示空白窗口。
+    if(window->isMinimized())
         window->setWindowState(window->windowState() & ~Qt::WindowMinimized);
-        window->setGeometry(normalGeometry);
-    }
+    window->hide();
     foreach(iGuiPlot* plot, window->findChildren<iGuiPlot*>()) clearResultCurveDataTables(plot);
     foreach(nmWxSensitivityShow* dialog, window->findChildren<nmWxSensitivityShow*>())
         dialog->setResults(QSharedPointer<nmDataSensitive::BatchResult>());