per kg

基本解釋

But not all have been under the threshold of 500 becquerels per kg.
但并不是所有樣品的放射量都在每公斤 500 貝克的門檻之下。
Indeed, the FAO Composite Price, as a world indicator price for tea, increased by 11.6 percent to reach US$1.83 per kg in 2006.
作為全球茶葉指示性價格的糧農(nóng)組織綜合價格在2006年實(shí)際增長了11.6%，達(dá)到每公斤1.83美元。
The market fundamentals for 2007 suggest that this trend is likely to continue as the FAO Index has increased a further 6.5 percent to US$1.95 per kg in 2007.
2007年市場基本面表明這一趨勢可能將繼續(xù)，因?yàn)榧Z農(nóng)組織指數(shù)在2007年進(jìn)一步增加6.5%，達(dá)到每公斤1.95美元。

If your plan is to accelerate a 3 kg mass with an acceleration of 2 meters per second, you better have a rope that can furnish that force and it can take the tension of 6 Newtons.
如果你想用 2 米每秒平方的加速度,去拉一個 3 千克的物體,那么你就需要一根能提供拉力的繩子,并且它能夠承受 6 牛的張力
耶魯公開課 - 基礎(chǔ)物理課程節(jié)選