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- lock and key protection system 锁和钥保护系统
- She has a diary that she keeps under lock and key. 女儿爱写日记，而且日记还加了锁。
- I keep the master copy under lock and key. 我对原件进行了妥善保管。
- We keep our valuables under lock and key. 我们把贵重物品锁起来收好了。
- Swarovski-Ginger Lock and Key Pendant. 情人锁项链。
- Nancy keeps her diary under lock and key. 南希把她的日记妥善地锁藏着。
- A lock and key come with each bicycle. 每辆自行车都附有一把锁和钥匙。
- The documents were under lock and key. 文件已经锁起来了。
- Some people kept their wives closely under lock and key. 有些人把他们的妻子看管得严严的。
- I will not rest until the murderer is under lock and key. 杀人凶手一天不关起来我一天不休息。
- You should have kept the matches under lock and key. 你本应该把火柴保管好的。
- There's no safety for anyone until he is under lock and key. 他不坐牢, 人无宁日。
- She would keep any sensitive documents under lock and key. 她总是把任何机密文件都锁得好好的。
- This paper analyzes and dicusses key protection principles and arithmetics according to actual application of general backup protection system for transformer. 论文结合通用型变压器后备保护系统的实际应用情况,对后备保护的主要保护原理和算法进行了分析和讨论。
- Rochester kept under lock and key in the care of Grace Poole. 她竭力想忘掉她对罗切斯特的看来毫无希望的爱情。
- Lockable; lock and key are included. 可锁;含锁和钥匙。
- Lock means to close a door,box,suitcase,etc and fasten it with a lock and key. lock意为把门、盒子、箱子等关上;再用锁（和钥匙）锁上.
- He put the key in the lock and turned it. 他把钥匙插入锁里转动。
- Engine operating display and protection system. 发动机运行显示及保护系统。
- Alternator output display and protection system. 发动机输出显示及保护系统。
