同实践的密切接触对我有实际的影响.

The exact contact with practice has practical impact on me.

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但在实践中未必如此，防范政策很可能会损害接触政策的基础。

In practice, however, the hedge risks undermining the engagement.

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水解酸化———生物接触氧化联合处理工艺处理高浓度纺织印染废水，是被实践证明了的切实可行的方法。

Hydrolysis acidification-biological contact oxidation process is applied to treat textile-dyeing wastewater, This process is proved to be one of the new water treatment processes.

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