In this article the using situation of light hydrocarbon in Hongtong city is introduced and the conception of multi utilizations of one gas is proposed.是什么意思_In this article the using situation of light hydrocarbon in Hongtong city is introduced and the conception of multi utilizations of one gas is proposed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句