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**一、删除面：**插入->面->删除面
<img src="C:\Users\Administrator\AppData\Roaming\Typora\typora-user-images\image-20230506002227482.png" alt="image-20230506002227482" style="zoom:50%;" />
二、基本操作
平移：Ctrl + 鼠标滚轮