开始作业前，必须检查专用的悬吊绳。
The dedicated hang-off line must be inspected prior to operation.
必须定期检查大钳悬吊绳，使其处于良好的备用状态。
Hanging lines for the rig tongs must be inspected at regular intervals and be in good working condition.
如果取一根一米粗的悬吊绳索，你可以把泰坦尼克号吊起来。
If you take the suspension cable which is the one meter thick, you could probably hang the Titanic from that.
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