以上来源于: WordNet
The two actions can maintain closed state of either disc in pipe. So it can discharge and lock air at the same time.
这样两个动作使管道上阀板始终有一个是关闭状态，可使卸灰与锁气同时达到目的。
The shaft is splined to lock into the disc to ensure positive rotation.
阀杆用花键锁在阀瓣上，以确保旋转灵活。
Products include: U lock, lock front fork, JuanXing locks, cable locks, lock wire, disc brake lock, chain, etc.
产品包括：U型锁，前叉锁，圈形锁，钢缆锁，钢丝锁，碟刹锁，链条锁等。
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