In chemical engineering, bioengineering and waste-water treatment engineering, there are a large number of pH process that need to be precisely controlled.

在化工、生物及废水处理工程中，大量存在着的p H过程需要得到精确的控制。

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But now scientists, who published their study in the journal Cell, have discovered the process by which the pH levels of the "internal environment" is controlled.

而将研究报告发表在《细胞》杂志上的科学家发现了控制“内部环境”PH值的过程。

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Basing on the need of PH control in process of engineering bacteria highly dense fementation, fuzzy control completes the task of the PH control of engineering bacteria highly dense fementation.

根据基因工程菌高密度发酵过程中对P H值控制的要求，采用模糊控制实现基因工程菌高密度发酵罐的PH值控制。

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It goes in the inventory then it goes down under wet(ph) process.

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And what began as a process almost exclusively available to scientists and engineering Ph.

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But the process is burdensome, and things will only get worse with two-thirds of the engineering Ph.

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