per

• The rate of loading should be 300 metric tons per workable hatch .
  每个可使用的舱口的装货率应为300公吨。
• Each succeeding day calls for an additional $ 3.83 interest per day .
  每延误一天，要追加利息3美元83美分。
• In addition to his salary , he has a bonus of 25 yuan per month .
  除工资外，他每月还有二十五元钱奖金。
• The space required per sales transaction also plays an important role .
  每笔交易所需要的空间也起很大作用。
• The output seldom exceeds ten fat lambs and a fat beast per ha .
  每公顷的产量很少超过十只肥羔羊和一头肉牛。
• The average price of common stocks increased nearly 300 per cent .
  普通证券的平均价格，增长了近百分之三百。
• More dry matter can be carted per load of a given cubic capacity .
  在一定体积的每次载运量中有较多的干物质。
• In a double-acting engine there is only one piston per cylinder .
  在双作用发动机中，每个汽缸里只有一个活塞。
• The knot is a unit of speed equal to one nautical mile per hour .
  “节”是表示每小时航行1海里的一个速度单位。
• The optimum density is difficult to specify in terms of trees per acre .
  很难定论究竟每英亩多少株树为最适密度。