查询词典 equilibrium of forces

As mentioned above, we have not explicitly used the first condition for equilibrium, that the vector sum of the forces be zero.

如上所述，我们没有直接应用第一平衡条件，即力的矢量和为零。

It points out that for all the complex flows under some great non-equilibrium forces, the preconditions to make an infinitesimal analysis over all the fluid field according to a set of differential equations will not exist.

指出对于存在极大力学不平衡的复杂流动，在整个流场依靠一个同一化的微分方程组，进行解析分析的连续可微逻辑前提是不存在的。

It can be divided into statics , the study of equilibrium, and dynamics, the study of motion caused by forces.

它可以分为静力学和动力学，前者研究平衡状态，后者研究力造成的运动。。

In so far as linear motion is concerned, a body is in equilibrium if the vector sum of the forces acting upon it is zero.

就线性运动而论，如果作用于一个物体上的诸力的矢量之和是零，那么这个物体就处于平衡状态。

As m tioned above, we have not explicitly used the first condition for equilibrium, that the vector sum of the forces be zero.

如上所述，我们没有直接应用第一平衡条件，即力的矢量和为零。

When the float upward force and float suffered gravity, buoyancy and viscous forces of the force equal to three when the float is in equilibrium.

当浮子上升的力与浮子所受的重力、浮力及粘性力三者的合力相等时，浮子处于平衡状态。

When the moon changes it position, so do the orientation of the tide-generating forces and the position of the equilibrium tide.

当月亮的位置改变时，引潮力的取向和平衡潮的位置也改变了。

When the moon changes it position, so do the orientation of the tide-generating forces and the position of the equilibrium tide.

当月亮的位置改变时，引潮力的取向和平

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。