地球引力减缓了月球的自转速度，使之与其轨道的速度相匹配。
The earth's gravity slows the moon's rotation, matching it to the speed of its orbit.
但这种影响向外扩散，逐层改变地核的自转速度。
But the effect ripples outward, changing the core's rate of rotation layer by layer.
现在，月球的自转速度与绕地球公转速度是一样的。
Right now, the Moon's rotation rate, and the time it takes to orbit Earth are the same.
算出了弹壳的抛壳速度、方向和自转速度等有关参数。
Its parameters such as velocities of ejection and rotation are calculated.
因此，我们可以用星星的自转速度及速率作为衡量它们年龄的计时器。
And so we can use the spin rate, the rotation rate of a star, as a clock to measure its age.
该文研究了东北地区夏季温度与地球自转速度变化的关系。
The relationship between temperature of Northeast China in summer and the earth rotation speed is studied.
所以Meibom和他的同事们正在测量已知年龄的星星的自转速度。
So Meibom and his colleagues are measuring the rotation of stars whose ages they already know.
据前人统计，厄尔尼诺出现于地球自转速度急剧变慢的第二年。
As predecessors' statistics, El Nio comes out in the second year when the rotation speed of the earth changed sudden slowly.
研究人员计算出这会怎样影响整个地球自转速度，这有助于保持角动量守恒。
The researchers calculated how this would affect the rotation rate of the whole planet, which would compensate to conserve angular momentum.
我们看到进行核反应产生中微子的太阳核心的自转速度明显比太阳表面慢。
The core of the sun - where nuclear reactions produce neutrinos - apparently spins more slowly than the surface we see.
反过来，地球的引力减慢了月球的自转速度，结果月球总是将其相同的一面展现给地球。
And conversely, Earth's gravity has slowed the moon's rotation so that it always presents the same face to its parent planet.
地球自转速度变慢、日长变长、华北地震活跃，据此认为目前华北处于非强震活动期；
When the speed of earth rotation is slowing, the length of day is lengthening, and the earthquakes in North China are active.
在厄尔尼诺现象期间，暴风会使地球的自转速度慢下来，大约是每24小时减慢一个毫秒的几分之一。
During El nino events, strong winds can slow Earth's rotation by a fraction of a milli-second every 24 hours.
美国宇航局1日宣布，智利发生的里氏8.8级地震可能改变了地球的自转速度，缩短了一天的时长。
The massive 8.8 earthquake that struck Chile may have changed the entire Earth's rotation and shortened the length of days on our planet, NASA said Monday.
科学家们指出，多数脉冲星是双星系统的一部分，自转速度不到20毫秒一周，但是大约30%的脉冲星没有任何伴星。
Most of the pulsars that spin faster than once per 20 milliseconds are part of a binary star system, but about 30% have no companions whatsoever, the scientists note.
这种震动以前被诟病为60年周期性日长变化的原因，但该研究发现的自转速度表明，它并不是罪魁祸首，英国利兹大学的乔恩芒德说。
The twisting had previously been blamed for a 60-year cycle in day length, but the rate of rotation found in this study suggests it is not the culprit, says Jon Mound at the University of Leeds, UK.
进一步分析表明，地球自转速度和太阳黑子周期长度的变化对高原及北半球本世纪气候的突变和阶段性变化起着重要的作用。
Further analyses show the variation of earth rotation rate and sunspot cycle length have important role on the climate abrupt change in the Qinghai-Xizang Plateau.
研究了工件的上盘方法以及抛光压力、自转公转速度、抛光液浓度对抛光质量的影响；
The hanging methods of workpiece and the effect of intensity of pressure, concentration and speed ratio on quality of finish are studied;
研究了工件的上盘方法以及抛光压力、自转公转速度、抛光液浓度对抛光质量的影响；
The hanging methods of workpiece and the effect of intensity of pressure, concentration and speed ratio on quality of finish are studied;
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