Station-Keeping of Spacecrafts around the Equilateral Equilibrium Points in the Sun-Earth+ Moon System

The collinear libration point L2 of the earth-moon system plays an important role in exploration of the back of the moon for its relatively fixed position with respect to the earth and the moon.

地&月系共线平动点L2相对地球和月球不变的空间位置使得它在月球背面探测任务中起着十分重要的作用。

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The systematology predicts that, from universal system as a whole, including Galaxy, solar system, earth-moon system and all layers of the earth, even to moleculars and atoms, they are all belong to different layers.

这个观点认为，从宇宙总体系银河系太阳系地月系地球各圈层，乃至分子，原子，都属不同的层次。

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Some problems about the application of the Chinese ancient eclipses records for the investigation of the Earth-Moon system secular acceleration

在研究地月系加速中应用中国古代日食记录的某些问题

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The injection of the geo-stationary satellite, the outer planet exploration and the revisit of the moon have been implemented or listed in the timetable.

地球同步卫星入轨、远日行星探测及月球探测等相关任务都已经开始实施或已被提上日程。

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There are certain characteristics in the intensity distribution of the planetary magnetic fields.

行星磁场强度的分布具有规律性，中间巨行星的强度值大，两侧类地行星和远日行星的强度值小。

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The chronology of the earth's history as determined by geologic events. standard global geochronologic scale

地质年代学以地质事件测定的地质历史年代学标准世界地质年代表

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A new geological time scale and views on the division of geological time

对地质时代划分的意见及新地质年代表

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Such dates provide information about the geologic history of the Earth and have been used to define the Geologic Timescale.

银河年和地质年代表天文地质年代表与旋回地层学研究进展这种测年提供了关于地球地质历史的信息，并已用于标定地质年代表。

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The Formula of Geological Time Scale

同步辐射时间分辨荧光光谱技术地质年代表的公式

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Standard global geochronologic scale He was elected as a delegate to the annual conference.

标准世界地质年代表他被选为年会代表。

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This part of geologic calendar has not been satisfactorily subdivided.

这部分地质年代表还没有令人满意地再细分出来。

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According to the recent astronomic observations, qualitative change evolution of organisms and global glacial stage data, the appropriate time interval of a galactic year should be 260 Ma, based on which a new geologic time scale is put forward in this paper.

依目前天文观测及全球生物质变进化和冰期资料来看，银河年时距以260Ma为宜。本文据此提出了一个新的地质年代表。

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Hence it is considered that a galactic year can be based on to institute an ideal geologic time scale in which a galactic year is an era.

银河年是建立理想地质年代表的基础，每一个银河年就是一个代。

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Because the horizontal motion of the fluid must be influenced by the rotating of the Earth, it is likely to produce vortexes within the fluid.

因为流体的水平运动是发生在转动着的地球上的运动，流体运动必然受到地转偏向力的作用，很可能发生流体涡旋。

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On the equator the deflection force of earth rotation which acts on the objects in non horizontal motion is not equal to zero.

赤道上作非水平面内运动的物体所受的地转偏向力并不等于零。

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The peculiar Coriolis force

奇特的地转偏向力

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The Horizontal Coriolis Force

水平地转偏向力

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This paper makes a concrete analysis of the deflection force of earth rotation ( f P) which acts on the objects in horizontal motion or in mon horizontal motion.

分析了物体在地球表面作水平面运动或非水平面运动时，所受到的地转偏向力fP的大小；

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Coriolis force is a tough problem which is frequently in Geogrephy teaching, especially in secondary shool.

地转偏向力是地理教学特别是中学地理教学一大难题。

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Weather Abnormal and Evolutions of Western Pacific Subtropical High and South Asian High in Summer of 2003

2003年夏季异常天气与西太副高和南亚高压演变特征的分析

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