1.
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
2.
geodetic parallel
大地纬度圈地理纬度平行圈
3.
parallel of latitude
纬度平行圈等纬圈黄纬平行圈
4.
celestial paralle
赤纬平行圈赤纬圈、赤纬平行圈
5.
the equinoctial colure
二分圈，昼夜平分圈
6.
loop pile carpet
毛圈式地毡,起圈地毯
7.
Explore the different settings of aperture, shutter speed, and white balance, if you can.
尽你所能地去发掘光圈、门、平衡等不同的设定。
8.
Plain washers--Normal series--Product grade A
GB/T97.1-1985平垫圈-a级
9.
international geosphere biosphere program
国际地圈 生物圈计划
10.
International Geosphere-Biosphere Programme
国际地圈－生物圈计划
11.
The ocean was flat and empty where he(fish)had jumped but the circle made where the water had been broken was still widening
霎时间，大洋又变得平静而空荡，刚才大鱼跳出来的地方，只剩下圈圈涟漪还在不断地向四周扩大。
12.
We saw it on the ground but when you walk on the ground you couldn't really appreciate the full extent of it.
在平地上就看得到这个圈，但是光是在地里走的话，你是看不出这个圈的全貌的。
13.
Indonesia is in a zone known as the Pacific" ring of fire", which is prone to earthquakes and volcanic activity.
印尼位于太平洋“火圈带”，是地震和火山活动的多发地区。
14.
The plane flew round and round in wideloops.
飞机翻着大圈一圈一圈地飞行.
15.
a great circle on the celestial sphere passing through the zenith and perpendicular to the horizon.
与水平线垂直的宇宙天体范围内的大圈，它经过天顶和地点。
16.
The trade wind cell is, on the average, confined to30 degrees poleward of the equator.
平均来说，信风圈限于离赤道（极地方向）0度的纬度带里。
17.
The Formation of Bohai Sea Rim Economic Circle and the Increase of Income in Jiaodong Region;
环渤海经济圈的形成与胶东地区收入水平的提高
18.
The angular distance along the horizon from true east or west to the intersection of the vertical circle of a celestial body with the horizon.
天体出没方位角沿地平线从准确的东或西方向到一个天体与地平线竖直圈交叉角的角距离