1.
a record designed to be played at 45 revolutions per minute
每分钟45转的唱片.
2.
Duration of the game is 90 minutes,each half 45 minutes.
比赛时间是90分钟，每半场各45分钟。
3.
revolutions per minute
(略【物】每分钟转数
4.
a speed of 100 revolutions per minute
每分钟100转的转速
5.
The drum is rotated at 20 revolutions per minute for 10 minutes.
圆筒以每分钟20转的速度转10分钟。
6.
increase the number of rotations per minute.
加快每分钟转动的次数。
7.
This machine runs at speed of 500 revolutions per minute.
这台机器每分钟500转。
8.
Steam was injected into the pan for 45 minutes.
盘中喷入蒸汽45分钟。
9.
A game of soccer is called a match and is split into two halves of 45 minutes each, with a 15-minute break at halftime.
足球比赛分为两个半场，每半场各45分钟，上下半场中间有15分钟的休息时间。
10.
THE MATCH A game of soccer is called a match and is split into two halves of 45 minutes each, with a 15-minute break at halftime.
比赛 足球比赛分为两个半场，每半场各45分钟，上下半场中间有15分钟的休息时间。
11.
doing a steady 4000 revs(per minute)
达到（每分钟）4000 转的恒定转速.
12.
The buses leave twice every hour on the quarter, eg at 10.15 and 10.45.
公共汽车在每小时的第一刻钟和第叁刻钟各开出一班车（如10时15分及10时45分）.
13.
old-fashioned type of gramophone record to be played at 78 revolutions per minute
每分钟 78转的旧式电唱机唱片.
14.
revolutions per minute(esp as a measure of engine speed)
每分钟的转数（尤指发动机的）
15.
distance by engine rev.per.m.
按主机每分钟转数计算出的航程
16.
A phonograph record designed to be played at45revolutions per minute.
每分钟四十五次转速的唱片
17.
They spin at 400-500 revolutions per minute.
它们每分钟旋转四百到五百周。
18.
This machine cannon has a high rotating speed reaching 500 revolutions a minute.
这架机关炮的转速很高, 每分钟可达到５００转。