Phone calls cost 20c per unit off-peak.
非高峰时间电话费每单位两角。
We restrict the number of students per class to 10.
我们将每个班的学生人数限定为10人。
Text and graphics are printed at 300 dots per inch.
文字和插图按每英寸300个点的密度打印。
At least one supernova occurs per decade in our galaxy.
每十年至少有一颗超新星在我们的银河系中出现。
The outpatient programme costs $105 per day, all inclusive.
门诊病人方案收费每人每天105美元，一切费用包括在内。
Your intake of alcohol should not exceed two units per day.
你每天酒精摄入量不能超过两个单位。
Most of our flights have a baggage allowance of 44 lbs per passenger.
我们大多数航班的行李限量是每位乘客44磅。
Jupiter's moon Io, whose density is 3.5 grams per cubic centimetre, is all rock.
木星的卫星木卫一全是岩石，其密度为每立方厘米3.5克。
Educational expenditure is often expressed in terms of the amount spent per student.
教育经费通常以用于每个学生的开支表示。
Senator Bill Bradley outlined his own tax cut, giving families $350 in tax credits per child.
参议员比尔·布拉德利简述了自己的减税计划，给家庭中每一个孩子$350税款补助。
Each tape lasts three minutes and costs 36 cents per minute off-peak and 48 cents at all other times.
每盘磁带持续3分钟，非高峰时间每分钟36美分，其他时间48美分。
If you have to cover 12 chapters in American history, begin by planning on three two-hour reviews with four chapters per session.
如果你必须涵盖美国史的12个章节，首先计划3次2小时的复习，每次4章。
Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.
有规律的重复活动如声波、光波、无线电波都有一个特定的频率，或者说是每秒的波动次数。
There is one database heap per database.
每个数据库都有一个数据库堆。
Protein and carbohydrate have 4 calories per gram, per unit weight.
每克每单位重量蛋白质和碳水化合物产生4卡路里。
We averaged 42 miles per hour.
我们平均时速为42英里。
He agreed to pay at specified rates per diem.
他同意每天按规定的数额付款。
Sales of new homes fell by 1.4 per cent in August.
新房的销售量在8月份下降了1.4%。
Travel agents charge 1 per cent commission on tickets.
旅行社收1%的购票服务费。
The disease affects fully 30 per cent of the population.
这种病感染了足足30%的人口。
Johnson carried the ball an average of 6 yards per rush.
约翰逊跑动带球平均每次行进6码。
He received a per diem allowance to cover his travel expenses.
他收到一笔按日计算的差旅费用补贴。
The average yearly increment in productivity was 4.5 per cent.
生产率的年平均增长量是4.5%。
Ethiopia has almost the lowest oil consumption per capita in the world.
埃塞俄比亚有几乎是世界上最低的人均石油消费。
In Japan 99 per cent of all households now have a colour television set.
日本99％的家庭如今都有彩电。
He predicted sales will fall 2 per cent to 6 per cent in the second quarter.
他预计第二季度的销售量将下降2%至6%.
Profits have risen by 15 per cent compared with the corresponding period last year.
与去年同期相比利润增长了15%。
Economists emphasize measurable quantities – the number of jobs, the per capita income.
经济学家们强调可以测算的量–职位数量，人均收入。
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