methene的音标：methene的英式发音音标为：['meθi:n]methene的美式发音音标为：['meθin]...

n.亚甲基...

ethene的音标：ethene的英式发音音标为：['eθi:n]ethene的美式发音音标为：['ɛθˌin]...

Advances in ethane dehydrogenation to ethene have been reviewed.乙烷脱氢制乙烯是乙烷利用的有效途径.Results show that PCE was dechlorinated reductively to DCEs and TCE, probable VC and ethene.结果表明:在微生物的作用下PCE还原脱氯为TCE和DCEs, 可能有VC和乙烯....

n.乙烯，乙撑...