Per

(prep.) Through; by means of; through the agency of; by; for; for each; as, per annum; per capita, by heads, or according to individuals; per curiam, by the court; per se, by itself, of itself. Per is also sometimes used with English words.

巴顿整理

• The clocks thus controlled ought to be so regulated that if left to themselves they would always gain a little, but not more than a few minutes per day. 佚名. 神奇的知识之书.
• Capacity freight engine, ten tons net freight; cost of handling a ton of freight per mile per horse-power to be less than ordinary locomotive. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Where the market rate of interest is five per cent. 亚当·斯密. 国富论.
• Suppose a note of 800 vibrations per second is sung. 伯莎M.克拉克. 科学通论.
• In a country where the ordinary rate of clear profit is eight or ten per cent. 亚当·斯密. 国富论.
• Twenty per cent. 查尔斯·狄更斯. 小杜丽.
• So when the men came to ask for the five per cent. 伊丽莎白·盖斯凯尔. 南方与北方.
• I worked on this cable more than two weeks, and the best I could do was two words per minute, which was only one-seventh of what the guaranteed speed of the cable should be when laid. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• It secured further 40 per cent. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The largest per capita increase since 1870 has been in malt liquors, and the next in coffee. Edward W. Byrn. 十九世纪发明进展.
• Get a quarter or half a pound of dark green ink, which is put up in collapsible tubes costing from fifty cents to $2 per pound, according to quality. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• Obviously, at each step the percentage of felspar and phosphorus is less and less until in the final concentrates the percentage of iron oxide is 91 to 93 per cent. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Sparkling Must requires an addition of 6 to 7 ounces of salicylic acid per 100 gallons. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• Opening the grenades under water and collecting the gas that escaped it was found that the average amount of carbon dioxide contained was about one cubic inch per grenade. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• About 1/4 to 3/4 of an ounce per 50 gallons will be found sufficient for most wines. 威廉K.戴维. 智者、化学家和伟大医生的秘密.

赫克托整理