cubic metre

基本解釋

The airlines at this time are working to a safe limit of four milligrams of ash per cubic metre of air.
而現(xiàn)在，航空公司衹能在空中每立方米灰分濃度低於四毫尅的安全限制範(fàn)圍內(nèi)運行。
Some employ distillation, which needs about 10 kilowatt-hours (kWh) of energy per cubic metre of seawater processed.
一些工廠採用的淨(jìng)化程序每処理一立方米海水需要約10千瓦小時的能量。
By reducing particulate matter (PM10) pollution from 70 to 20 micrograms per cubic metre, we can cut air quality related deaths by around 15%.
將可吸入顆粒物（PM10）從每立方米70微尅減少到20微尅，則與空氣質(zhì)量有關(guān)的死亡就可減少大約15%。

On April 21st the CAA established a new rule, deeming regions thought to have less than 2, 000 micrograms of dust per cubic metre safe for flight.
ECONOMIST: Volcanoes and air travel: Small eruption in Iceland The