The paper analyzes the issues on the braking accuracy and its safety protection distance designed for automatic train overspeed protection system.

分析列车超速防护系统的制动精度和它的安全防护距离的设计问题。

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According to the actual situation of power supply network and protection system under mine, a long distance faults online monitoring program is presented for overcoming the short protection distance.

本文结合矿用供电网的实际情况和保护系统的现状，针对现有技术保护距离较短的缺点，提出了一种针对矿用供电线路的远距离故障在线监测的方案。

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Remember that any protection, however temporary, is better than none at all, and the more shielding, distance, and time you can take advantage of, the better.

记住，任何的保护措施，不管是否是临时性的，总要比没有任何的防护要好，遮挡放射性尘降物的东西越多，离放射性尘降物的距离越远，越善用时间，保护的效果就会越好。

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In turn, the utility can offer its ratepayers a package of some two dozen consumer services, including Internet access, appliance protection, satellite television, long-distance telephone service, carbon-monoxide protection and security.

ECONOMIST: Electricity marketing: Not as billed | The

Following the recent emergence of studies finding high levels of coronary plaque in marathon runners, sports medicine is debunking the myth that distance running confers near-absolute protection against heart disease.

WSJ: The Exercise Equivalent of a Cheeseburger?

WorldCom, at one time the nation's number-two long-distance phone company, filed for Chapter 11 bankruptcy protection.

FORBES: Guilty, But Not Over