Duration: Specifies the length of time for which a lock is held.

持续时间：指定了锁被持有的时间长度。

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In underground water conveyance system for Three Gorges Projects permanent lock, the inclined shafts are large in number, short in length, complex in structure, changeable in height and so on.

针对三峡工程永久船闸地下输水系统斜井具有数量多、长度短、体型复杂、边墙高度逐渐变化等特点。

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At 4in long, they are over double the length of the average Yale lock key.

BBC: Disabled toilets: What is a Radar key?

The All Blacks took an early 10-3 lead when lock Isaac Ross finished off a sweeping length-of-the-field move.

BBC: South Africa 31-19 New Zealand