midas civil建立实体模型（水化热）出现边界问题怎么办
模型老是提醒一下边界问题应该如何处理，跪求高手支招！！WARNING : EQUATION NO. 12159
WARNING : NODE NO. 4099DYDOF MAY BE SINGULAR.
WARNING : EQUATION NO. 12160
WARNING : NODE NO. 4099DZDOF MAY BE SINGULAR.
WARNING : EQUATION NO. 12161
WARNING : NODE NO. 4143DXDOF MAY BE SINGULAR.
WARNING : EQUATION NO. 12291
WARNING : NODE NO. 4143DYDOF MAY BE SINGULAR.
WARNING : EQUATION NO. 12292
WARNING : NODE NO. 4143DZDOF MAY BE SINGULAR.
WARNING : EQUATION NO. 12293
WARNING : NODE NO. 4047DXDOF MAY BE SINGULAR.
WARNING : EQUATION NO. 12003
WARNING : NODE NO. 4045DZDOF MAY BE SINGULAR.
WARNING : EQUATION NO. 11999
WARNING : NODE NO. 4039DYDOF MAY BE SINGULAR.
WARNING : EQUATION NO. 11980
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