Passive leg raising(PLR) is a new method for predicting volume responsiveness.

被动抬腿试验（PLR）是预测容量反应性的一种新方法。

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In contrast, performing a passive leg-raising test has been proved as valuable for this purpose.

相比之下，被动抬腿试验则更好地实现了这一目的。

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The research work of this dissertation establishes theoretical basis for the further research of the 3-DOF parallel manipulator with one passive leg practically.

论文的工作为进一步研究少自由度并联机构的实用性奠定了一定的理论基础。

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The second leg of the New Triad therefore requires the development and deployment of active and passive defenses, required to enhance U.S. dissuasion and deterrence against potential adversaries.

CENTERFORSECURITYPOLICY: US Nuclear Stockpile