常见例句用作名词 (n.)Ethylene is a growth hormone in plants.乙烯是植物中一种生长荷尔蒙。The concentration of ethylene is on the high side.乙烯浓度偏高。The plant can produce up to 130 tons of ethylene each month.这家工厂每月最高能生产一百三十吨的乙烯。 返回 ethylene