记录设备的频率响应是上述记录媒质经过磁头的相对运动速度的函数。
The frequency response of recording devices is a function of the relative speed of the recording medium past the head.
本文提出质点和质点系(绝对运动和相对运动)质量加速度矩定理。
This paper proposes the theorem of moment about mass acceleration of the particle and the system of particles (absolute motion and relative motion).
在一特定的转动参照系中，利用相对运动的速度和加速度合成公式，通过一特定的相对运动简洁地导出常用坐标系中的速度和加速度表达。
Expressions of velocities and accelerations in usual coordinates are simply derived by means of the composition formulae of velocity and acceleration in special rotation reference systems.
在孔口影响域内，水沙两相不仅在垂向上有速度滑移，而且在水平方向上也有相对运动。
The slip velocities occur both in the vertical and horizontal directions in the influenced zone by the bottom outlet.
另外，网络图与相对运动图解法结合得出了求解二自由度平面机构速度瞬心的一种可行方法，这类机构的速度瞬心单纯采用三心定理是不可能求解的。
In addition a feasible method of finding out velocity instant centers of plane mechanisms for two degrees of freedom can be obtained by means of combining net gr...
当海浪提升网笼时，网笼的运动速度大于部件，两者之间会产生相对运动。
When the sea wave lifts up the mesh cage, the movement velocity is faster than the component, a relative movement occurs between the two.
当海浪提升网笼时，网笼的运动速度大于部件，两者之间会产生相对运动。
When the sea wave lifts up the mesh cage, the movement velocity is faster than the component, a relative movement occurs between the two.
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