... 拖式升降机 towed hoist 附着式升降机 attached hoist 单导轨架式升降机 mono-上海宝达施工升降机 hoist ...
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In larger sizes, force pipes together by means of a "pull lift" or lever hoist attached by slings around the outside of the pipes.
对于较大口径的管道,则可通过用环绕在管道外壁的绳索固定的“拖拉”或者杠杆将管道组对起来。
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