Electrohydrodynamics is among the most promising techniques for manipulating liquids in microsystems. The electric stress actuates, generates, and coalesces droplets of small sizes; it also accelerates, focuses, and controls the motion of fine jets. In this review, the current understanding of dynamic regimes of electrically driven drops and jets in multiphase microsystems is summarized. The experimental description and underlying mechanism of force interplay and instabilities are discussed. Conditions for controlled transitions among different regimes are also provided. Emerging new phenomena either due to special interfacial properties or geometric confinement are emphasized, and simple scaling arguments proposed in the literature are introduced. The review provides useful perspectives for investigations involving electrically driven droplets and jets.

中文翻译：

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多相微系统中液滴和射流的电流体动力学。

电流体动力学是操纵微系统中液体的最有前途的技术之一。电应力致动，产生并凝聚小液滴；它还可以加速，聚焦和控制精细射流的运动。在这篇综述中，总结了当前对多相微系统中电动液滴和射流的动态状态的理解。讨论了力相互作用和不稳定性的实验描述以及潜在机理。还提供了不同制度之间受控过渡的条件。强调了由于特殊的界面特性或几何限制而产生的新现象，并介绍了文献中提出的简单的比例论证。