1.
The Northern Hemisphere is the part of the world north of the equator, and the Southern Hemisphere is south of the equator.
北半球是地球赤道以北的部分，南半球是赤道以南的部分。
2.
When they got finished, they had 80 thousand miles of cable, enough to span the earth at its equator three times over.
他们完成这项工程，用了8万英里的钢索，足以绕地球赤道3圈还多。
3.
The equator divides the earth into two hemispheres.
赤道把地球划分成为两个半球。
4.
Also, the earth swells at the equator.
地球在赤道处略微有点凸出。
5.
an imaginary line around the Earth parallel to the equator.
围绕地球与赤道平行的假想线。
6.
Those running around the world, parallel to the equator, are called lines of latitude.
那些国境线着地球，和赤道平等的线叫纬线。
7.
As a result the earth bulges slightly at the equator and is slightly flattened at the poles.
结果，地球在赤道上微微凸出，而在两极微微扁平。
8.
Terrestrial latitude is measured in degrees north or south from the equator.
地球纬度是从赤道向南或向北以度数来表示。
9.
Either half of the celestial sphere as divided by the ecliptic, the celestial equator, or the horizon.
半天球被黄道，天赤道或地平圈分成两半的天球的一半
10.
an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator.
穿过地球南北极且与赤道垂直的假想的地球表面的大圆。
11.
Except at the pole and the equator, a plumb line does not point toward the earth's center.
除在地球的两极和赤道之外，铅锤线并不指向地球中心。
12.
the hemisphere north of the equator.
赤道以北的那个半球。
13.
the hemisphere south of the equator.
赤道以南的那个半球。
14.
equinoctial line [ circle ]
天球赤道, 昼夜平分线
15.
equatorial horizontal parallax
赤道地平视差赤道地平视差
16.
Either the northern or southern half of the earth as divided by the equator or the eastern or western half as divided by a meridian.
（地球的）半球被赤道分开的南半球或北半球，或被子午线分开的东半球或西半球
17.
of or existing at or near the geographic equator.
存在于地理赤道或赤道附近。
18.
The centrifugal force caused by the earth's rotation decreases from a maximum at the equator to zero at the poles.
地球自转产生的离心力从赤道的最大值降低到极地的零值。