A gyro measures rate of rotation around a particular axis.

陀螺仪测量机体围绕某个轴向的旋转角速率值。

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But the effect ripples outward, changing the core's rate of rotation layer by layer.

但这种影响向外扩散，逐层改变地核的自转速度。

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Forearm muscle speed and strength training can serve to improve the success rate of rotation and increase the spin of the ball.

前臂肌肉的速度力量的训练，能够提高旋转发球速度、成功率和增加球的旋转。

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RadioAstron will also examine pulsars and the outer regions of spiral galaxies in order to get more precise measurements on their rate of rotation and distance from earth.

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Ajmal's action also involves an unusually high rate of abduction, or rotation around the elbow joint, which can create an illusion of the arm straightening.

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And the rotation rate determines the length of a day.

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