本文的工作对于相位器的研究、设计和应用具有积极作用。

And the works of the paper will play a positive role for designs, studies and applications of CAM phaser.

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首先，有压倒性的研究表明DHA对大脑健康和整体健康具有积极作用。

First, there's overwhelming research on the positive effects of DHA on brain health and overall health.

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中国的上述原则对促进实施适当、可行的军备透明措施具有积极作用。

These principles play an active role in promoting the implementation of proper and feasible transparency measures.

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