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.
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。
Earth is a bit closer to the sun in early January and farther away in July, although this variation has a much smaller effect than the heating and cooling caused by the tilt of Earth's axis.
地球在1月初接近太阳，而在7月远离太阳，尽管这种远近变化的影响比地轴倾角造成的冷暖效应要小得多。
A relationship between the earthquake occurrence and the abnormal variation of directions of earth current is proposed.
提出了地震与地下电流方向异常变化间的一种关系。
The present paper discusses the theoretical problems concerning the possibility of predicting earthquakes in the light of the abnormal variation of directions of earth current.
本文讨论了利用地下电流方向异常变化预报地震可能性的理论问题。
The result shows that it is more important to separate sea level height variation caused by seawater density change in the study of Earth dynamic problem.
表明，在研究许多地球动力学问题时，扣除海水密度变化引起的海面高变化至关重要。
The paper also discussed the variation features of the sudden change of earth resistivity as well as the shape of sudden change and its temporal-spatial distribution.
讨论了地电阻率临震突变的变化特点、变化形态和时、空间分布特征。
There are two main research fields in the rotation dynamics of the planet Earth: rotation variation and the fluid motion effected by rotation.
行星地球自转动力学主要有两方面研究内容：自转变化和在自转条件下内部流体物质运动。
The daily variation in properties of the Earth, such as the temperature or the local geomagnetic field, or the daily change in sunlight.
地球各种特征每天的变化，如温度、局部地磁场每天的变化、以及阳光每天的变化。
Through the artificial freezing earth simulation test, the physical and mechanic variation laws of the freezing structure are gained.
主要是通过人工土冻结模拟试验，得出冻土结构物的物理力学变化规律。
Then a new method of computing Doppler shift is presented, in which the variation of link length is regarded as the relative velocity between satellite and earth station.
随后给出了一种以链路距离变化率作为相对速度来计算多普勒频移的新方法。
Therefore, the change of Earth orbital parameters is just one of factors, which could lead to the paleoclimate variation.
因此，地球轨道参数变化影响气候长期变化只是其中一种因素。
These correlations depend not only on the state of the basic stress field in the island arc-trench but also on the additional stress field caused by the variation of rotation velocity of the earth.
这种特征可能不仅和海洋与大陆板块汇聚边界的岛弧海沟上的基本应力状态有关，而且与自转速率不均匀产生的附加应力状态有关。
Results show that the time sequence of earth resistivity displayed a fractional structure and an obvious reduction of dimensional variation before earthquakes.
结果表明：地电阻率时间序列存在分维结构，并且在地震前有明显的降维变化。
Existent state variation of rare earth elements (REEs) in wheat rhizosphere and non-rhizosphere soils were studied using root - box technique.
采用根际袋法研究了稀土在春小麦根际土壤与非根际土壤中存在形态的差别。
Atmospheric drag is the main perturbation force on a low earth orbit satellite and is closely related to the variation of high atmospheric density.
大气阻力是低轨卫星主要的摄动力，与高层大气密度的变化密切相关。
Undulation is one of the fundamental models of the geological effect, the undulation motion and variation in shape of earth crust is an geologic facts.
波动是地质作用的基本形式之一，地壳的波状运动和变形是客观存在的。
The effect on improving the properties of Ni-base alloy was studied in this paper based on variation in adding amount of rare-earth metals.
本文试验研究了钇基稀土用于改善铸造镍基耐蚀合金性能的效果。
A primary model for entropy variation of the solid Earth system is presented, coinciding with the three inferences mentioned above.
文中还介绍了一个地球熵变的粗略模型，它与上述3个准则的推论符合。
A primary model for entropy variation of the solid Earth system is presented, coinciding with the three inferences mentioned above.
文中还介绍了一个地球熵变的粗略模型，它与上述3个准则的推论符合。
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