The application of optical fiber communications in university security precaution system is described generally.

概述了光纤通信在高校安全防范系统中的应用。

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A security precaution on this server was that every day, it ran the security program Tripwire — specifically, the older version, 2.3.0.

这台重要的服务器的安全措施之一是，它每天都运行Tripwire——具体地说，是较老的2.3.0版本。Tripwire是一个检测重要文件是否被篡改的安全程序。

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The system comprises four modules: an identity verification module, a security precaution module, a game updating module and an online game service module.

该系统包括四个模块：身份验证模块、安全预防模块、游戏更新模块，以及在线游戏服务模块。

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As a security precaution, however, it is requiring all users to reset their passwords when they log in.

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As a security precaution, the military refused to say what route the plane is taking or where it will stop.

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The wall outside had already been raised as a security precaution.

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