乙烯价格

ethylene series───n.乙烯系（碳氢化合物）

ethylene group───n.乙烯基

ethylene radical───乙烯基

ethylene glycol───乙二醇，乙烯乙二醇

ethylene groups───n.乙烯基

methylene chloride───二氯甲烷，亚甲基氯

ethylene radicals───乙烯基

ethylene and propylene in the international market brought new chances for popularization of this technology.───国际市场乙烯、丙烯大幅度上扬，为本项技术的推广带来新的契机。

The paper expounds the importance of doing risk distinguishing for the petrochemical projects investment and introduced its model of analysis method. T he variation of ethylene price is predicted.───阐述了石油化工项目投资风险辨识的重要性及其风险辨识的分析方法模型，并对未来乙烯价格走势进行了预测。