Utilities are supposed to let you build one-off applications cheaply and easily from the materials at hand.

实用程序应该允许您根据手边的材料廉价而容易地构建一次性的应用程序。

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At the end of this introduction, you should be able to use the text processing utilities, pipes, and streams to build complex data crunching systems.

读完本文，您将能够使用这些文本处理实用程序、管道和流来构建复杂的数据处理系统。

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With any luck, you learned enough to build your own applications and utilities.

如果幸运的话，您学到的知识足以构建自己的应用程序和实用工具。

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The need to build pipelines from gas fields to utilities and the requirement to build networks of charging stations on highways and in major cities will require a whole new massive infrastructure effort, which in turn will need the services of construction workers, engineers and other assorted building folk.

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For the moment, facilities that gasify coal to make it cleaner are not widely in operation, and in spite of the many permits being sought by utilities to build nuclear plants (if they wish to do so), no one has come forth with a proposal to actually build one.

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And the utilities failed to build up expertise in certain areas, such as robotics.

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