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驱动装置、张紧装置分别与牵引链条相接。
The actuating device and the tensioning device are connected with the drag chain.
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本提升机的牵引机构是两根环形链条。
This elevator traction institutions are two circular chain.
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本提升机的牵引机构是两根环形链条。
This elevator traction institutions are two circular chain.
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