As the unit of deployment (and as the artifact that exists in the file system), the JAR is a very practical unit of reuse but it lacks some of the other characteristics of a good module.

作为一个部署单元(和文件系统中存在的工件)，JAR是一个非常实用的重用单元，但它缺乏作为一个好模块的其他一些特征。

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We have already finished a set of peak power detecting system (with power supply) and a set of peak power display unit and used them in practical measurement.

该项研究工作，目前已完成一套峰值功率探测系统（含电源），一套峰值功率显示系统，在实际测试中发挥效能。

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The paper describes a switching unit testing system with good results in practical use.

这篇文章介绍在实际中使用效果非常好的一种交换单元测试系统。

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