The diameter of Mars is slightly over half that of the earth. The rings are somewhat larger in diameter than they will be when in the cylinder.

If the radius of the curved terrain is much less than that of the earth, it can be viewed as a combination of a flat-curved-flat terrain.

当曲面地带的半径远小于地球的半径时，这种地带可以被看成平面-曲面-平面地带的组合。

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The oblateness in each time can be calculated according to the conjectured change of the radius, the quality and the angular velocity.

通过推测地球的半径、质量和角速度的变化量，计算出地球各个时期的扁率。

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This is the radius of the earth, and you see the moment of inertia of the earth.

这是地球的半径，得到地球的转动惯量。

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It is indicated in this paper that effective earth radius can be introduced by using median value approximation of integration, which is also an effective technique to obtain accurate solution of atmospheric effects on radio wave propagation.

该文指出，使用中值近似是获取大气折射精确解的一种途径，而且通过积分中值近似可导出有效地球半径。

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Based on conversion of radar measurement parameters from geodetic coordinates to space coordinates, a method is presented for calculating earth radius corresponding to any point on radar wave.

本文通过雷达测量参数和大地坐标与空间坐标的转换，给出了计算雷达电波射线上任意一点对应地球半径的方法。

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Surface gravity would have gone up by only 0.4 percent, rather than 1.2 percent, since surface gravity is proportional to radius. 4

而地表的重力也只是增加了0.4%，而不是1.2%，因为地表的重力与地球半径成正比。4

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The refraction effect complex operation can be greatly simplified by using equivalent earths radius; therefore it is widely available in the actual project.

等效地球半径的使用可大大简化电波在大气中传播时折射效应的复杂运算，因此在实际工程中获得广泛应用。

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Under the quiet solar wind condition, the dayside magnetopause is at about 10R_E from the center of the Earth.

向日面磁层顶在平静太阳风条件下，处于10RE（RE为地球半径）左右。

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Elevation differences is small compared with the earth's radius, this is proportional to the height above sea level.

高程差与地球半径相比显得很小，它与海洋面以上的高度成正比。

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Problems in earth's equivalent radius method application

等效地球半径法应用中的问题

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On the Concept and Definition of the Effective Earth's Radius

关于等效地球半径的概念和定义问题

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Results show that the current 4/ 3 effective earth's radius model has the lowest accuracy and can be used only below the height of 1 kilometer over the surface to guarantee sounding accuracy while the modified effective earth's radius model has the greatest accuracy.

计算结果表明：目前使用的4/3地球半径模式精度较差，只能在离地面1km高度以下使用，才能保证精度；改进等效地球半径模式的精度最高；

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Q. How long would it take for people to notice their weight gain if the mean radius of the world expanded by 1cm every second?

Q.如果地球半径现在开始以每秒1厘米的速度扩大，要花多久人们才能意识到他们自己变重了？

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Application of effective earth radius and methods to derive it are discussed.

对有效地球半径的推导方法和应用进行了讨论。

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The Earth Radius Calculating Method in Radiowave Refractive Correction for Low Altitude Targets

低空目标电波折射修正中地球半径计算方法

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Asymmetry between the southern and northern hemispheres of the Earth is further stated on the basis of new calculations, analyses and observations of space geodesy.

依据新的计算分析和空间观测数据，进一步论述了地球南北半球的非对称性。

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At this time, the sunlight shines vertically on the equator, equally dividing the day and night in both the southern and northern hemispheres.

在这个时候，太阳直射赤道，南北半球昼夜平分。

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The study of the seasonal variability of the wave direction shows that the swells come from high latitude both in north and south hemisphere.

同时通过对平均波向的季节变化分析，发现大洋中的涌浪来源于南北半球高纬度地区。

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This paper examines the developmental divide manifested in the digital divide between the North and the South and indeed within regions and countries.

本文检视介于南北半球之间、域或国家之内的数位落差所显现的发展落差。

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The moon travels in an elliptical orbit in relation to the equator, swinging back and forth over the northern and southern hemispheres.

月球在与赤道相对的椭圆形轨道上运行，往返于南北半球的上空。

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