Its one thing to understand the principle, its another thing to put it into practice..

知道原理是一回事，但要付诸实践又是另外一回事。

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In the paper, the optimum holing form and principle are put forward for the horizontal anti-seepage curtain and it is obtained that the structure with rolling bottom elevation is the optimum one.

提出了水平防渗帷幕最佳布孔连接形式和布孔原则，得出了底部高程起伏的结构形式为最佳结构形式。

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It's one thing to understand the principle; it's another thing to put it into practice.

知道原理是一回事，但要付诸实践又是另外一回事。

youdao

One key principle of this era is that IT must put information in the hands of users and provide them with the tools to make use of it and capture and propagate what they have learned.

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