在同一金属零件的零件图中,当图形中的主要轮廓线与水平成45°时,该图形的剖面线应画成与水平成( )的平行线。 -题库考试答案搜索网

在同一金属零件的零件图中,当图形中的主要轮廓线与水平成45°时,该图形的剖面线应画成与水平成( )的平行线。

单选题

2021-07-17 23:52

A、30°
B、45°
C、30°或60°

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正确答案

C

试题解析

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