diff --git a/1.6/1.6/Defs/ResearchProjectDefs/ARA_ResearchProjects.xml b/1.6/1.6/Defs/ResearchProjectDefs/ARA_ResearchProjects.xml
index 2e058df..79be5a8 100644
--- a/1.6/1.6/Defs/ResearchProjectDefs/ARA_ResearchProjects.xml
+++ b/1.6/1.6/Defs/ResearchProjectDefs/ARA_ResearchProjects.xml
@@ -433,6 +433,18 @@
     <prerequisites>
       <li>ARA_Technology_2NPT</li>
     </prerequisites>
+  </ResearchProjectDef>
+   <ResearchProjectDef ParentName="ARA_techBase">
+    <defName>ARA_Technology_4NPT</defName>
+    <label>节点NPT-4"孵化池"</label>
+    <description>允许虫族建造孵化池。一种专用于批量生产虫族的孵化场地。孵化池的孵化效率比孵化茧更高。</description>
+    <baseCost>1800</baseCost>
+    <researchViewX>15.50</researchViewX>
+    <researchViewY>2.70</researchViewY>
+    <requiredResearchBuilding>ARA_ResearchBench</requiredResearchBuilding>
+    <prerequisites>
+      <li>ARA_Technology_1NPT</li>
+    </prerequisites>
   </ResearchProjectDef>
   <!-- 作物发展 -->
   <ResearchProjectDef ParentName="ARA_techBase">
diff --git a/1.6/1.6/Defs/Thing_building/ARA_NutrientNetworkBuilding.xml b/1.6/1.6/Defs/Thing_building/ARA_NutrientNetworkBuilding.xml
index a6ca682..27bc247 100644
--- a/1.6/1.6/Defs/Thing_building/ARA_NutrientNetworkBuilding.xml
+++ b/1.6/1.6/Defs/Thing_building/ARA_NutrientNetworkBuilding.xml
@@ -332,6 +332,9 @@
       <workTableRoomRole>Laboratory</workTableRoomRole>
       <workTableNotInRoomRoleFactor>0.8</workTableNotInRoomRoleFactor>
     </building>
+    <researchPrerequisites>
+      <li>ARA_Technology_4NPT</li>
+    </researchPrerequisites>
     <comps>
       <!-- a. 我们新的队列物品生产组件 -->
       <li Class="ArachnaeSwarm.CompProperties_QueuedInteractiveProducer">