虽然极光一般仅在两极附近可见，不过在强烈的磁暴对地球磁场的影响下，极光也会在赤道附近出现。
While aurora are generally only visible close to the poles, severe magnetic storms impacting the Earth’s magnetic field can shift them towards the equator.
虽然极光一般仅在两极附近可见，不过在强烈的磁暴对地球磁场的影响下，极光也会在赤道附近出现。
While aurora are generally only visible close to the poles, severe magnetic storms impacting the Earth's magnetic field can shift them towards the equator.
还有，由于世界时旋转的，因此在赤道稍微膨胀一点，所以在中间比在两极稍微长一点。
What's more, because the world spins, it bulges a bit at the equator, so it is a little bit longer around the middle than around the poles.
它有一个较亮的半球面和一个较暗的半球面，并且有着古怪的外形，两极平坦凹陷，并且有着环绕球体半圈的赤道脊，使它看上去像一个核桃的外形。
It is two-toned - one half is black, the other shining white - and strangely shaped, flattened at the poles and squashed at the sides as well.
MyCn18之所以呈现出沙漏的外形，是因为一个缓慢扩张的云团里迅速向外冲去的恒星风造成的，其“赤道”附近的云团密度要大于两极。
MyCn18's hourglass shape is thought to have arisen from the expansion of a fast stellar wind within a slowly expanding cloud which is denser near its equator than its poles.
我之前谈过经度（longitude）和纬度（latitude），它们是用来标度连接两极的经线、以及平行于赤道的纬线的角度单位。
The other day I talked about longitude and latitude which are measured as angles around the equator and toward the poles.
唯一的区别是，在地理上，纬度在赤道是0度，然后由赤道向两极数字递增。
The only difference is in geography, latitude is zero on the equator and becomes something north, something south, depending on how far you go from the equator.
地球是一个扁平的球体—一个具有扁平的两极和赤道附近稍稍凸出的球体。
The earth is an oblate spheroid - a sphere with flattened poles and a slight bulge at the equator.
地球的赤道直径是7,929英里，两极之间的直径比赤道直径约少28英里。
The earth is 7,929 miles in diameter at the equator and about 28 miles less in diameter at the poles.
对流层——接近地表的大气层。它的距赤道深度超过10英里距两极超过5英里。
Troposphere — the atmosphere which is closet to the earth. Its depth ranges from about 10 miles over the equator to about 5miles over the poles.
在热带地区，一整年都是流感好发季节，倘若赤道附近的热带性气团向两极扩张，一些季节错乱的地区便可能发觉流感疫期已稍稍延长。
Influenza is a year-round event in the tropics. If the tropical airmass around the Earth's equator expands, as new areas lose their seasons they may also begin to see influenza year-round.
换句话说，如果按照这个比例制作一个半径30厘米的地球仪，那么它的赤道半径和极半径仅相差1毫米！
In other words, if according to the proportion of production with a radius of 30 cm of the globe, so its equatorial radius and the polar radius is only a difference of 1 mm!
工程师们为探测器设定了一个特定的绕木轨道，经过木星的极区，从而尽可能减少与环木星赤道辐射带的接触时间。
Scientists designed a path that takes Juno around Jupiter's poles, spending as little time as possible in the sizzling radiation belts around Jupiter's equator.
对坑道内赤道偶极装置电阻率测深的可行性进行研究。
Feasibility of dipole equatorial resistivity sounding in tunnel was discussed.
从赤道到两极，有规律地排列组合的气候地带的总体叫做水平气候带谱。
Assemblys of certain climate belts on land arranged and composed orderly form climate - belt spectra.
近极区的穴较之赤道区的要小且形状较不规则。
Alveolae of the proximal exine are smaller and less regular in form than those at equatorial region.
地球大陆确实有缓慢的移动(比如几亿年前南极洲在现在的赤道附近)，但那和地球自转极会逆反的说法是不相关的。
There are slow movements of the continents (for example Antarctica was near the equator hundreds of millions of years ago), but that is irrelevant to claims of reversal of the rotational poles.
地球大陆确实有缓慢的移动(比如几亿年前南极洲在现在的赤道附近)，但那和地球自转极会逆反的说法是不相关的。
There are slow movements of the continents (for example Antarctica was near the equator hundreds of millions of years ago), but that is irrelevant to claims of reversal of the rotational poles.
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