“rope slipping”可以造什么句,rope slipping造句
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If the object is vertical and smooth, and there is danger of the rope slipping, take an extra wrap around the object.
No loss of car position during longer power failure or rope slipping.
If the object is vertical and smooth, and there is danger of the rope slipping, take an extra wrap around the object.
No loss of car position during longer power failure or rope slipping.