In the early 1400s came the invention of the coiled spring or fusee which maintained constant force to the gear wheels of the timekeeper despite the changing tension of its mainspring.

在15世纪早期，人们发明了螺旋弹簧或均力圆锥轮，尽管它的主弹簧的张力不断变化，但仍能对计时装置的齿轮保持恒定的力。

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Two coils move the piston back and forth magnetically at a constant force.

两组线圈在一个连续电磁力的作用下来回移动一个微型活塞。

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Constant force spring hanger is a device which puts invariable tension on the thing it hangs in limited displacement.

恒力弹簧支吊架是一种在限定位移内对被支吊物施以恒定张力的装置。

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The force, as this weight drops is constant, mgh and so the work is just going to be m g h, h where this is h.

当重物掉落时候的力是恒定的，因此做功就是，这段长度是。

麻省理工公开课 - 热力学与动力学课程节选

The great discovery that Galileo and Newton made is that you don't need a force for a body to move at constant velocity.

伽利略和牛顿的伟大发现就是,物体不需要力来维持匀速运动

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Therefore, it'll compress by an unknown x, which is equal to mg divided by the force constant of the spring.

因此它的压缩量为 x,也就等于 mg 除以弹簧的弹性系数

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Immediately after the collision, a constant braking force of magnitude 250 N is applied to C.

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The pull in different directions towards your family and towards a job you love will be constant and will force you to make tough decisions.

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Payroll employment rose significantly in March, and the unemployment rate remained constant despite a substantial increase in the labor force.

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