1.
It has a circumference of about forty thousand kilometers, a polar diameter of twelve thousand seven hundred and fourteen kilometers, and an equatorial diameter of twelve thousand seven hundred and fifty-six kilometers.
它的周长约为40000公里，南北极直径约12714公里，赤道直径为12756公里。
2.
The earth is slightly flat at the poles, so that the polar diameter is slightly less than the equatorial diameter.
地球在两极扁平一点，所以其极直径略小于赤道直径。
3.
Saturn, the second-biggest planet in the solar system with an equatorial diameter of 74,000 miles and the sixth from the sun, is about 746 million miles from Earth.
土星第二,在太阳系最大行星的赤道直径74,000公里,从太阳第六、距地球约746亿英里.
4.
Near the Martian equator sits a volcano1,100 kilometers in diameter named Syrtis Major.
在火星的赤道附近，座落著一个直径1100公里的火山，称为大三角。
5.
direct read-out equatorial weather satellite
直接拍发赤道气象卫星
6.
Aram Chaos, a 280-kilometer-diameter crater, has an outflow channel and is filled with layered rocks that contain hematite.
阿拉姆裂地（一个直径280公里的陨石坑）有个向外流的渠道，并且充满了含赤铁矿的岩层。
7.
The equator. Used with the.
赤道赤道。和the连用
8.
The sun strikes near the middle of the planet at the equator.
阳光直射在行星中间的赤道附近。
9.
The cylinder diameter of raceway center(mm)
－滚道中心圆直径(mm)
10.
Equatorial Customs Union
赤道关税同盟(赤道税盟)
11.
A similar great circle drawn on the surface of a celestial body at right angles to the axis of rotation.
天球赤道在天体表面与自转轴成直角的大圆
12.
a great circle on the celestial sphere that passes through both celestial poles.
通过天体球两极与天体赤道成直角相切的大圈。
13.
The diameter of the inside of a round cylinder, such as a tube.
口径圆柱体内侧圆的直径，如管道
14.
A direct channel by which information is privately transmitted.
渠道，途径信息可秘密传送的直达通道
15.
Material along the rotation axis falls vertically toward the equatorial plane much faster.
沿著转轴两侧分布的物质则快速笔直地落入赤道面。
16.
Having or constituting a support with two perpendicular axes, one of which is parallel to the earth's rotational axis.
赤道平面上的由两条互相垂直的轴支撑的，其中一条与地轴平行
17.
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。
18.
Ecuador→the equatorial country
厄瓜多尔→赤道国。