试题详情

Carefully put the valve assembly in its position and install the spacers and the bolts.

A小心地把阀组装在其位置上,并安装封圈和螺栓。

B小心地把阀组件放置到位,并安装垫片和螺栓。

C小心地把组件阀放置到位,并安装垫片和螺帽。