The relationship between temperature of Northeast China in summer and the earth rotation speed is studied.
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。
When the speed of earth rotation is slowing, the length of day is lengthening, and the earthquakes in North China are active.
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；
That is an orbit which turns at the same speed as the rotation of the Earth.
这种轨道是与地球自转保持同步的。
As predecessors' statistics, El Nio comes out in the second year when the rotation speed of the earth changed sudden slowly.
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.
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。
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