The Octane Number is retained owing to HZSM 5 � � s excellent ability of aromatization, isomerization and alkylation.HZSM-5沸石对汽油的降烯烃作用得益于其优异的芳构化 、 异构化和烷基化性能.These derivatives are readily obtained by alkylation of 2 - mer...
I never dreamed that I'd tee up with Bob Hope.我做梦也没想到能和鲍勃·霍普一起打高尔夫。The description fits us to a tee.这样的描述再适合我们不过了。I bent down to tee up my ball.我俯下身把球放在球座上。...