指出了未来聚变堆对杂质控制，排气和等离子体-表面相互作用的要求。
Requirements for impurity control, exhaust and plasma-surface interactions in future reactors are indicated.
本文介绍了基于EAST超导托卡马克装置真空系统杂质控制系统的改进工作。
This article introduces some improving work on impurities control of vacuum system in EAST TOKAMAK device.
其中化工原料的着色杂质控制，这个因素变化最大，但也是最重要和最有效的。
Among them, the control of color impurities is the most important and effective factor.
药物的杂质控制对于保证药物的效能，降低药物的不良反应起着很关键的作用。
The control of the impurity in guarantee the drug, lowering the bad reaction of the drug plays an important role.
药物的杂质控制对于保证药物的效能，降低药物的不良反应起着很关键的作用。
The control of the impurity in guarantee the drug, lowering the bad reaction of the drug plays an important role.
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