• 2022-06-29
    已知机件俯视图如下,请选择正确的局部视图表达的主视图。[img=364x251]1803bcdff6b02fb.png[/img]
    A: [img=312x269]1803bce0016b002.png[/img]
    B: [img=318x274]1803bce00b4facf.png[/img]
    C: [img=315x274]1803bce01547cc9.png[/img]
    D: [img=340x285]1803bce02016beb.png[/img]