The results provide a useful theory basis and technology reference.

结果为水液压泵的研究提供了理论依据和技术参考。

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However, understanding theory is hardly enough to write a useful program.

不过，理论上的理解还不足以编写出实用的程序。

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However, understanding theory is hardly enough to write a useful program.

不过，理论上的理解还不足以编写出实用的程序。

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