Remove door handle base plate.

拆下车门把手底板。

Therefore, the base plate valve to improve more meaningful.

因此，座板阀改进的意义更大。

Winch base plate ready for cleaning and drilling bolt holes.

绞车底板准备清洁和钻井螺栓孔。

A top surface and a bottom surface are defined on the base plate.

该基板上定义一顶表面和一底表面。

A first concave part is formed on the top surface of the base plate.

该基板的该顶表面形成一第一凹陷部。