当我在加载一个压力载荷与一个平面,在solve的时候,软件弹出 : xy plane element116305 of type PLANE42 has a ratio of Z variation to element size of 0.999070326,which exceeds the error limit of 1E-02.increace the error limit using SHPP,FLAT to alow the element.。。请教一下,这是那个地方出现的问题,改怎么解决呢??