This design has been proved to be successful in the practical testing.

现场实验结果表明，该设计是成功的。

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Some practical testing techniques and desirable observation results have been obtained through investigation and experiment.

通过研究和试验获得了实用的试验技术和理想的观察结果。

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The results show that the technique can improve the testing speed effectively and is suitable to the practical testing occasion.

结果表明，超声导波技术检验速度快，可有效地提高检测效率，并且有良好的现场可操作性。

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More specifically, rather than provide a long manifesto of the theory behind lean startup, Udacity breaks down the process of launching a business into practical steps for systematically testing hypotheses and developing a business plan that will actually work.

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First, it has become practical to use IT to automate and semi-automate many aspects of the testing process, which lowers the cost of testing enormously.

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Geothermal energy is buried miles deep underground and is, for all practical purposes, impossible to find without a fair amount of technical knowledge, testing and so forth.

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