These files are locked to protect confidentiality.

为了保密，这些文件都加了锁。

《牛津词典》

The shipped content packages are locked to preserve their integrity.

原始附带的程序包是锁定的，以保持其完整性。

youdao

Rather than being locked to a single system... the application can instead be executed on one of several available machines

应用不会限定在单一系统……而是能在若干可用机器的任一台上执行。

youdao

During the second orbit, one of these signals warned that the heat shield might not be locked firmly to the bottom of the spacecraft.

VOA: special.2009.06.17

So if you have a great idea, you know, talk to a good patent attorney and get it locked away.

所以当你有个好点子的时候，你们知道的，找个专利代理人,然后把它好好藏起来吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

If I don't, I get locked in jail or they tell me to get out of the country.

如果不缴税，我会被关到监狱,或者被驱逐出境。

耶鲁公开课 - 公正课程节选

It'd be pretty impossible for me to say that carriers can't install whatever they want, but it can't be locked to the carrier.

ENGADGET: Mozilla CEO talks Firefox OS release details, app ecosystems and carrier bloatware

Alternatively, users could buy unlocked versions of smartphones from manufacturers, but these handsets were typically more expensive than those locked to one network.

BBC: US phone unlocking deadline expires

Afterwards Msgr Guido Marini, papal master of ceremonies, called out the words "Extra omnes" - "Everybody out" - and the chapel doors were locked to outsiders.

BBC: Rome conclave: Cardinals fail to elect pope in first vote