他们希望减少建筑工作所需的部件数量和重量,例如,用空心管代替实心支架。
They hope to reduce both the number of components needed in a construction job and their weight—by replacing solid supports with hollow tubes, for example.
其它部件不需要移动,门把手和支架也保留原位。
No other parts need to be removed, the handle and bracket remain in place.
泵主要由泵体、泵盖、叶轮、轴、密封环、中间支架、密封和悬架部件等组成。
The pump comprises mainly of pump body, cover, impeller, shaft, seal ring, intermediate support, sealing and suspension assembly, etc.
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