[img]file:///C:\Users\jh\AppData\Roaming\Tencent\Users\497837717\QQ\WinTemp\RichOle\9_7CF44]F[F{S6CZ7%(VPPE.png[/img][img]file:///C:\Users\jh\AppData\Roaming\Tencent\Users\497837717\QQ\WinTemp\RichOle\H%L`9[P_0I)@@KM6Q09]36C.png[/img]各位专家,请问为什么LNG换热器从simple weighted模型换为Plate fin 模型就不通了呢?谢谢