• 2021-04-14 问题

    Polders working together with embankment, sluice and ditch can block the flood.

    Polders working together with embankment, sluice and ditch can block the flood.

  • 2021-04-14 问题

    平行水闸轴线剖切得到的剖视图是什么?What is the ... axis of the sluice?

    平行水闸轴线剖切得到的剖视图是什么?What is the ... axis of the sluice?

  • 2021-04-14 问题

    某对称水闸宽度方向水平尺寸基准的位置是什么?What is ... a symmetric sluice?

    某对称水闸宽度方向水平尺寸基准的位置是什么?What is ... a symmetric sluice?

  • 1