diff --git a/Include/nmNum/nmData/nmDataAnalyzeContextProvider.h b/Include/nmNum/nmData/nmDataAnalyzeContextProvider.h
index 19c0ce1..63f8770 100644
--- a/Include/nmNum/nmData/nmDataAnalyzeContextProvider.h
+++ b/Include/nmNum/nmData/nmDataAnalyzeContextProvider.h
@@ -28,7 +28,6 @@ class NM_DATA_EXPORT nmDataAnalyzeContextProvider {
     // 数据按纵向向量组织：[0]时间、[1]油、[2]气、[3]水；这里只复制窗口快照，不修改业务数据。
     virtual bool getCurrentSegmentMultiPhaseData(
             void* pFitting,
-            bool& bMultiPhase,
             QString& sFlowCurveName,
             VVecDouble& vvecMultiPhaseData) = 0;
 
diff --git a/Include/nmNum/nmSubWnd/nmSubWndDataAnalyzeController.h b/Include/nmNum/nmSubWnd/nmSubWndDataAnalyzeController.h
index 15f1ce1..6df9578 100644
--- a/Include/nmNum/nmSubWnd/nmSubWndDataAnalyzeController.h
+++ b/Include/nmNum/nmSubWnd/nmSubWndDataAnalyzeController.h
@@ -22,7 +22,6 @@ class NM_SUB_WND_EXPORT nmSubWndDataAnalyzeController : public nmDataAnalyzeCont
     // 获取当前流动段分析中的多相流量矩阵
     bool getCurrentSegmentMultiPhaseData(
             void* pFitting,
-            bool& bMultiPhase,
             QString& sFlowCurveName,
             VVecDouble& vvecMultiPhaseData);
 
diff --git a/Src/nmNum/nmData/nmDataAnalyzeManager.cpp b/Src/nmNum/nmData/nmDataAnalyzeManager.cpp
index a42a9d4..81897a9 100644
--- a/Src/nmNum/nmData/nmDataAnalyzeManager.cpp
+++ b/Src/nmNum/nmData/nmDataAnalyzeManager.cpp
@@ -1971,11 +1971,10 @@ void nmDataAnalyzeManager::initCurWellData()
     }
 
     // 主井必须跟随当前流动段分析实际使用的压力、流量 Gauge Code，
-    // 而不是默认选择工程树中的第一条记录。多相时再覆盖同 Code 工作矩阵。
+    // 而不是默认选择工程树中的第一条记录。有效的四向量工作矩阵覆盖同 Code 记录。
     QString sCurrentPressureGaugeCode;
     QString sCurrentFlowGaugeCode;
     int nCurrentFlowIndex = 0;
-    bool bCurrentMultiPhase = false;
     VVecDouble vvecCurrentMultiPhaseData;
     iSubWndFitting* pSubWndFitting = nmDataAnalyzeManager::getCurrentFitting();
     nmDataAnalyzeContextProvider* pContextProvider =
@@ -1989,10 +1988,8 @@ void nmDataAnalyzeManager::initCurWellData()
                     sCurrentFlowGaugeCode);
         if(pContextProvider->getCurrentSegmentMultiPhaseData(
                    pSubWndFitting,
-                   bCurrentMultiPhase,
                    sCurrentFlowGaugeCode,
-                   vvecCurrentMultiPhaseData) &&
-           bCurrentMultiPhase) {
+                   vvecCurrentMultiPhaseData)) {
             applyCurrentMultiPhaseFlowData(
                         vecFlowRecords,
                         sCurrentFlowGaugeCode,
diff --git a/Src/nmNum/nmSubWnd/nmSubWndDataAnalyzeController.cpp b/Src/nmNum/nmSubWnd/nmSubWndDataAnalyzeController.cpp
index 4dfa095..d56701e 100644
--- a/Src/nmNum/nmSubWnd/nmSubWndDataAnalyzeController.cpp
+++ b/Src/nmNum/nmSubWnd/nmSubWndDataAnalyzeController.cpp
@@ -93,11 +93,9 @@ bool nmSubWndDataAnalyzeController::getCurrentSegmentGaugeCodes(
 // 复制当前流动段分析的多相流量快照，保持 nmData 与具体窗口类之间的模块边界。
 bool nmSubWndDataAnalyzeController::getCurrentSegmentMultiPhaseData(
         void* pFitting,
-        bool& bMultiPhase,
         QString& sFlowCurveName,
         VVecDouble& vvecMultiPhaseData)
 {
-    bMultiPhase = false;
     sFlowCurveName.clear();
     vvecMultiPhaseData.clear();
 
@@ -111,7 +109,6 @@ bool nmSubWndDataAnalyzeController::getCurrentSegmentMultiPhaseData(
         return false;
     }
 
-    bMultiPhase = pSegInfo->m_bMultiPhase;
     sFlowCurveName = pSegInfo->m_sCurveNameF;
     vvecMultiPhaseData = pSegInfo->m_vvecMpData;
     return true;