And they found that after circling the Earth some 5000 times the gyroscopes' Angle of spin had changed, ever-so-slightly, in response to the Earth's gravitational pull.
他们发现在围绕着地球旋转了大约5000次之后,作为对地球引力的响应,陀螺仪的旋转角发生了极其微小的改变。
The Angle of earth's spin is constant only because the moon's gravitational pull.
地球的自转角度能够保持不变,完全是因为有了月球的引力拉动。
Pull the tip of the movable set so that the negative taper angle of the grinding easier.
活动式拉梢之设置使负推拔角之研磨更为方便。
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