1.
A loop, as of metal, rope, or thread.
金属圈，绳圈，线圈
2.
Small circle, small circle, small circle, big circle.
小圈、小圈，小圈、大圈，
3.
plate-enlargement ring
夹板衬圈, 涨圈簧
4.
The number of turns of wire in the secondary coil is the same as the number of turns in the primary.
次级线圈的圈数和初线线圈圈数一样。
5.
floating buoy (excl.lifebuoys)
浮圈（不包括救生圈）
6.
Coming around. Once more. One more.
来了，再一圈，再一圈
7.
A life preserver shaped like a ring.
救生圈圈状救生用具
8.
horse shoe washer
开口垫圈,马蹄形垫圈
9.
loop pile carpet
毛圈式地毡,起圈地毯
10.
tapped coil
多(接)头线圈, 抽头线圈
11.
the equinoctial colure
二分圈，昼夜平分圈
12.
international geosphere biosphere program
国际地圈 生物圈计划
13.
International Geosphere-Biosphere Programme
国际地圈－生物圈计划
14.
chev(e)ron ring
人字密封圈, v型圈
15.
Cat B: 8 laps, each lap 3.8 km, total 30.4 km. The 4th lap is a sprint lap.
组：8圈，每圈3.8公里，总共30.4公里，第四圈为冲刺圈。
16.
Cat B: 4 laps, each lap 8.5 km, total 34 km. The 2nd lap is a sprint lap.
组：4圈，每圈8.5公里，总共34公里，第二圈为冲刺圈。
17.
The plane flew round and round in wideloops.
飞机翻着大圈一圈一圈地飞行.
18.
Merry goes round, goes round, goes round.
快乐转了一圈，转了一圈，转了一圈。