The book remains at rest or, in physical terminology, in static equilibrium not because there are no forces acting on it but because the forces which do act on it annul one another.

此书处于静止，或者用物理术语来讲处于静力平衡，并不是因为没有力作用在它上面，而是因为作用其上的力彼此互相抵消。

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Lengagne's software then converts these static poses into one smooth motion, taking into account the forces operating on the robot in each position to ensure it does not lose balance.

然后，Lengagne软件把各种静态姿态转换成连续动作，并考虑机器人每一步作用力，以保持自己身体平衡。

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Objective:To develop a detecting and analyzing system of dynamic and static ground reaction forces when walking or standing.

目的：研制一种集成检测动态行走和静态站立的地面反力分析系统。

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The threats, while very different than the Cold War confrontation, are much more complex, much more varied, and much more disparate and less able to be dealt with by the kind of static and ordered forces that we were used to in the Cold War.

CENTERFORSECURITYPOLICY: 2011 Freedom Flame Award: John Lehman

Government figures show forces who have used static and mobile speed cameras, have seen road deaths fall dramatically.

BBC: Speed camera stance defended

U.S. national security strategy and defense planning recognized that the balance of forces in regions of interest would not remain static and that prospective adversaries would acquire advanced capabilities over time.

CENTERFORSECURITYPOLICY: Center for Security Policy | The Measure of a Superpower: A Two Major Regional Contingency Military for the 21st Century | Page: 3