完善MECMAS21参数配置与分组交互

schemas/system-simulation-v2.xsd

@@ -131,6 +131,7 @@
       <xs:attribute name="schemaVersion" use="required" fixed="2"/>
       <xs:attribute name="unitSystem" use="required" fixed="SI"/>
       <xs:attribute name="mediumReferenceVersion" use="optional" fixed="1"/>
+      <xs:attribute name="amesimParameterEncodingVersion" use="optional" fixed="1"/>
     </xs:complexType>
   </xs:element>
 </xs:schema>