This paper uses the principles of ergonomics to study the operating force of both hands and feet needed by a winch operator as well as tolerable safe noise levels.

应用人类工程学的理论，对绞盘机司机手动操纵力、脚踏操纵力的合理数值进行了分析；并根据在林区的实际测试数据，计算分析出绞盘机司机耳旁噪声的安全限值。

youdao

Maximums are based on the operating force for each valve size.

这种最大压差值是根据每个通径阀门的操作力计算的。

youdao

For force transducers without built-in overload protection, the limiting force and operating force are identical.

对于没有过载保护的力转换器，极限力和操作力是一样的。

youdao

Although Air Force One's operating costs per person far exceed the cost of even a first-class commercial ticket, the logic is that it's unfair to charge the president's campaign for the full cost of operating Air Force One because he has no choice but to fly on the presidential plane for security reasons.

CNN: The perks of presidential travel

Obviously I think there have been -- Congress has looked into the cost of operating Air Force One, and GAO reports that I would point you to.

WHITEHOUSE: Press Briefing

French Foreign Minister Dominique de Villepin argues that any force operating without a U.N. mandate will do so in a legal vacuum.

CNN: Analysis: Battles ahead over U.N. role