per year中文什么意思

每年

• per:     ＄2 per man 每 ...
• year:    n. 1.年，岁；一年。 2.年度， ...
• per ann per annum = by the year:    每年

例句与用法

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1. Less extreme rate range from a few feet per day to a few feet per year .
   不太极端的速度介于每天几英尺和每年几英尺之间。
2. Workers at nuclear installations are not supposed to receive more than 5 rad per year .
   从事原子核工作的人员，每年接受的照射不许超过5拉德。
3. The point source data file contains data for sources emitting more than a specifilc amount of a pollutant per year .
   点污染源数据文件列有每年超量排放污染物的污染源数据。
4. In fact, it is common practice to express the pulsar slowdown as the period divided by the period change per year .
   事实上，人们通常用周期与周期年变率之比来表示脉冲星的减速。
5. Most of the united states east of the hundredth meridian receives a rainfall of thirty inches or more per year .
   美国在子午线一百度以东的大部分工区，每年都有三十英寸以上的雨量。

英文释义

r

1. by the year; every year (usually with reference to a sum of money paid or received); "he earned $100,000 per annum"; "we issue six volumes per annum"
   同义词：per annum, p.a., each year, annually, per annum, p.a., each year, annually
2. by the year; every year (usually with reference to a sum of money paid or received); "he earned $100,000 per annum"; "we issue six volumes per annum"
   同义词：per annum, p.a., each year, annually, per annum, p.a., each year, annually