This stuff is so potent that, as an airborne vapor just a few millionths of a gram per cubic meter of air meets the legal safety limits.
这东西非常强大，作为一种可以利用空气传播的气体，每立方米空气中有百万分之几克，就是法定安全上限。
Grams per cubic meter
原声例句
Scishow 精选系列
英语百科
Kilogram per cubic metre
Kilogram per cubic metre is an SI derived unit of density, defined by mass in kilograms divided by volume in cubic metres. The official SI symbolic abbreviation is kg·m, or equivalently either kg/m or 
.
- moving platen的意思
- moving platen copying machine的意思
- moving platen document copying machine的意思
- moving plates的意思
- moving plates of variable condenser的意思
- moving platform的意思
- moving platform correction的意思
- moving platform posturography的意思
- moving point的意思
- moving point device的意思
- moving pointer的意思
- moving pollution source的意思
- moving polode的意思
- moving pressure pulse的意思
- moving production的意思
- moving projection的意思
- moving prominence flare的意思
- Moving Proteinase,Slow的意思
- moving radar的意思
- moving, radiation therapy的意思
- moving rail的意思
- Moving ramp的意思
- movingrange的意思
- moving range的意思
- Moving range chart的意思