随着潮汐摩擦力和地球体积的增大，地球自转角速度变慢。
Because of tidal friction and aggrandizement of the earth's volume, the earth's rotation angular velocity slows down.
旋转弹外弹道自转角速度的实时测量是弹道修正引信弹道解算器设计的重要环节之一。
The new method of measuring angular velocity of spinning projectile in exterior trajectory was proposed.
应用微扰论的方法对落体偏东进行研究，给出了在地球自转角速度一级近似下的计算公式。
By using perturbation mode, we study the free falling eastward body, and present the first approximate calculation formula of the rotation angular velocity of the earth.
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