乙烯

yǐ xī shù zhī

乙烯树脂

vinyl resin

yǐ xī xiān wéi

乙烯纤维

vinyl fibre

yǐ xī sù liào

乙烯塑料

vinyl group of plastics

jù yǐ xī

聚乙烯

polyethylene

yǐ xī qì

乙烯气

ethylene gas