岁差，基本上是地球自转轴方向的改变。
Precession, basically is the change in the direction of earth's axis of rotation.
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.
不便之处是地球的自转并不是那样的准确可靠。
The snag is that the rotation of the Earth is not so reliable.
由于地球的自转，赤道以北的飓风是逆时针旋转的，赤道以南则是顺时针。
Due to the earth's rotation, hurricanes spin counterclockwise north of the equator and clockwise south of it.
那么关于地球上的一天为什么变短的答案是，地球的自转加速了。
And the answer is for the day to get shorter, Earth's rotation has to speed up.
核弹是人类最强大的武器，但是它们的破坏性影响还不大可能改变地球沿着其轴线的自转。
Nuclear bombs are humankind's most powerful weapon, but their destructive impact would unlikely alter the spinning of the Earth on its axis.
地球的自转轴与黄道面呈一定角度。黄道面是地球公转轨道所在的一个假想平面。
The Earth's axis of rotation is tilted in relation to the ecliptic plane, an imaginary surface through Earth's orbit around the sun.
到目前为止，类星体是测量地球自转最好的参照系。
Quasars are so far away that they constitute the best frame of reference for measuring Earth's rotation rate.
北极是地球表面与假想的自转轴相交的北交点。
The North Pole is the spot on Earth’s globe that marks the northern end of an imaginary stick Earth spins around.
可是人人皆知，尽管时钟和地球自转是规则的，我们对时间的体验却有不同的速率。
Everybody has noticed that, despite clocks and the regular turning of the earth, time is experienced as passing at different rates.
了解地球自转的方向是自西向东。
Understand that the direction of the Earth's rotation is from west to east.
由于地球自转与气流循环的关系，雨滴的路线很少是真正的垂直线。
Because of the rotation of the earth and the circulation of air currents, raindrops seldom fall in strictly perpendiclar lines.
时间是一个被创造出来的幻像，重力、地球自转、电磁场和天体对应都是用来展现它的要素。
Time is a created illusion and gravity, earth spin ratio, electromagnetics and celestial alignments are components of its unfolding.
全球动力学扁率(H)是研究地球自转与岁差的一个重要物理量。
Global dynamic flattening (h) is an important parameter in the study of the Earth rotation.
因为地球自转，它被太阳照亮的一侧是是白天，而处在黑暗中的一侧是夜晚。
As the earth rotates, its side that is lighted by the sun is day time, while its side that is in darkness is night time.
柯里奥利力是地球自转的一种惯性力。
圣诞老人的线路最好是与地球自转逆向而行，而不是悬浮在空中、等着各家各户随着地球自转来到他的脚下。
But instead of hovering over a longitude waiting for the Earth's rotation to bring homes to him, Santa can do better by travelling backward against the direction of Earth's rotation, notes the author.
请记住，即使是你或者是我们一大群人能够为改变地球的自转或位置做出许多事，我们能在极轻微程度上产生影响。
Keep this in mind, even though you or even a large group of us can do much to change the earth's location or rotation. we can affect it a little bit.
这种轨道是与地球自转保持同步的。
That is an orbit which turns at the same speed as the rotation of the Earth.
人类的科学已经知晓是地球的核心在驱使着地球自转，地核比地壳转动得要稍微快些。
It is known in human science that the core drives the rotation, and rotates slightly faster than the crust itself.
同样，地球减慢其自转并停下来所需要的时间是几周，而不是几个月，这种情况是曲线似的，因而最后几天（地球）才“刹车”停止转动。
The amount of time that the Earth requires to slow her rotation to a stop is likewise weeks, not months, and this is on a curve so that the last few days are where the brakes are really applied.
自1820年，尤其是20世纪以来，新疆及其邻区的强震活动与地球自转相对速率变化有明显的关系。
From 1820, especially in twentieth century in Xinjiang and its adjacency, strong earthquake activities are evidently related to the rate changes of the earth's rotation.
理查德·格罗斯：地球的自转是时刻改变的，时而加速，时而减速，在旋转的时候还会摆动。
Richard Gross: the Earth's rotation changes all the time. It speeds up and it slows down and it wobbles as it rotates.
后从一个白色孔致密物质爆炸袭击地球，地球的自转是破坏。
After dense matter from an imploded white hole hits Earth, the planet's rotation is devastated.
后从一个白色孔致密物质爆炸袭击地球，地球的自转是破坏。
After dense matter from an imploded white hole hits Earth, the planet's rotation is devastated.
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