cantilever gin pole
... cantilever derrick 悬臂式起重机；折叠式井架 cantilever gin pole 悬臂把杆；动臂把杆 cantilever mast 悬臂式桅杆；折叠式轻便井架 ...
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把WZ25-20挖掘装载机作为研究样机，其反铲挖掘装置主要由动臂、斗杆、铲斗、导轨机构、回转机构和连接架组成。
Now WZ25-20 is regarded as an example, its backhoe device consists of moving arm, pole, bucket, guiding organization and rotation mechanism.
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