reactive still

The definition of instantaneous reactive power in sinusoidal circuit is still a pending problem and should be studied further. The authors consider that the theory of instantaneous power should be studied on the basis of the original definitions of instantaneous active and reactive power.

针对研究近一个世纪还没有解决的瞬时无功功率界定与定义的问题，该文认为应从原始瞬时有功功率、瞬时无功功率界定来研究瞬时功率理论。

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This paper presents a review of transport models, numerical simulation, applicable computer software and correlative problems in this research domain. On such a basis, problems still existing with multicomponent reactive solute transport in soil are discussed.

本文回顾了此研究领域的运移模型、数值模拟、可应用的计算软件和相关的问题，并在此基础上，提出目前土壤多组分反应性溶质运移仍存在的问题。

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However, due to the complexity that originates from the coexistence of abundant reactive species, its mechanism is still difficult to understand. Until now, reactive plasma diagnosis has been one of the most challenging tasks.

但由于大量活性物种共存的复杂性，很难理解其中的物理机制，直到目前，活性等离子体诊断也是很具有挑战性的任务之一。

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The process of reactive distillation involves using the reaction vessel as the still.

反应蒸馏的过程涉及到用作反应釜的蒸馏釜.

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United Nations Secretary-General Antonio Guterres believes that radio is still one of the most reactive and engaging forms of broadcast media.

.联合国秘书长安东尼奥·古特雷斯认为，广播电台仍然是最活跃、最有趣的媒体形式之一。

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