这用于标注尺寸时，返回到前一图层设置当前图层或已使用的文本。

This is used to set the current layer back to the previous layer when dimensioning or text has been used.

youdao

这用于标注尺寸时，返回到前一图层设置当前图层或已使用的文本。

This is used to set the current layer back to the previous layer when dimensioning or text has been used.

youdao