1、Gas,oil and coal are the most common heating fuels.
the burning of gas ,oil,and coal has created acid rain.(as a
Burning gas ,oil and coal creates air pollution
英语翻译The Office of Coal,Nuclear,Electric and Alternate Fuels
There are coal,oil and metal ______ buried deep in the groun
things like gas,oil ,pertrol and coal 可以有哪个词代替?
英语翻译oil,coal,natural gas,solar heat,wind,etc.But the convent
what are the differences between 'hard coal' and 'soft coal'
英语翻译useing techniques developed for the offshore oil and gas
Oil and gas Roll on the barrels 什么意思?
Today,most of the families use gas to cook _______ coal,even
.Today,most of the families use gas to cook _______ coal,eve
As there is less and less coal and oil,scientists are explor