It is gradually slowing down and factors such as disruptions in the earth's core, extreme weather, volcanic eruptions and earthquakes can all influence the precise length of the astronomical day.
地球的自转正在逐渐的慢下来，而像地核分裂、极端天气、火山爆发、地震发生等事件都会影响天文日的确切长度。
Melting of glaciers near the Earth's poles and the resulting rise in sea level is slowing down the Earth's rotation, thereby increasing the length of our days, a new study suggests.
最新的研究称，地球两极附近的冰川融化以及由此引起的海平面上升，减缓了地球自转的速度，进而增加了一天的时长。
Melting of glaciers near the Earth's poles and the resulting rise in sea level is slowing down the Earth's rotation, thereby increasing the length of our days, a new study suggests.
最新的研究称，地球两极附近的冰川融化以及由此引起的海平面上升，减缓了地球自转的速度，进而增加了一天的时长。
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