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自动抓梁是水电站门式起重机的专用取物装置。
Automatic gripping beam is a specialised banging device for gantry cranes used at hydropower stations.
youdao
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自动抓梁是水电站门式起重机的专用取物装置。
Automatic gripping beam is a specialised banging device for gantry cranes used at hydropower stations.
youdao