Telescoping of the boom is carried out through telescoping cylinder and steel cable, and all booms telescope simultaneously.
吊臂的伸缩是通过伸缩油缸和钢丝绳进行，各伸缩臂同步伸缩。
This signal will be picked up from the existing RW cable boom.
这个信号将回升，从现有的RW光碟电缆繁荣。
This signal will be picked up from the existing RW cable boom.
这个信号将回升，从现有的RW光碟电缆繁荣。
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