若正六棱柱的顶面为水平面,一个棱面为正平面,则其主视图为________ A、反映前后棱面实形的矩形线框 B、反应顶面和底面实形的正六边形线框 C、三个矩形线框 D、两个矩形线框 - 查题网

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成人高等教育 / 机械制图

若正六棱柱的顶面为水平面,一个棱面为正平面,则其主视图为________

A、
反映前后棱面实形的矩形线框
B、
反应顶面和底面实形的正六边形线框
C、
三个矩形线框
D、
两个矩形线框

积分

机械制图

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