一个简单二维模型出现error节点未定义?
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 errorNode set assembly_part-1-1_part-1-refpt_ has not been defined
Unable to locate node set assembly_part-1-1_part-1-refpt_. The node set must have been previously defined.
errorNode set assembly_part-1-1_part-1-refpt_ has not been defined
Unable to locate node set assembly_part-1-1_part-1-refpt_. The node set must have been previously defined.
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