trillionth造句
Itwasfoundinconcentrationsof29to850picogrammespercubicmetreofair.Amicrogrammeisonetrillionthofagramme.TheX-raypulseshaveashutterspeedoflessthan100femtoseconds(100femtoseconds=1/10ofatrillionthofasecon...
Itwasfoundinconcentrationsof29to850picogrammespercubicmetreofair.Amicrogrammeisonetrillionthofagramme.TheX-raypulseshaveashutterspeedoflessthan100femtoseconds(100femtoseconds=1/10ofatrillionthofasecon...