我插钥匙时，请用手电筒照着锁头。

Shine the torch on the lock while I try to get the key in.

《牛津词典》

一旦进入房间，检查门窗的锁头。

Once inside your room, check the door and window locks.

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要干净，要整洁，给锁头上油。

Be clean, be tidy, oil the lock.

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锚锁由锁头、锁尾和螺栓三部分组成。

The anchor lock is comprised of a lock head, a lock tail and a bolt.

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卡子和锁头之间靠钢绳连接。

The holding latch is connected with the lock head via the steel rope.

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独特隐蔽机械锁头设计。

Unique and cover-up design for mechanical locking head.

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独特隐蔽机械锁头设计。

Unique and cover-up design for mechanical locking head.

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