The hydrogenation of diene compound and carbonyl group with yeasts was studied.对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究.EPDM is a terpolymer elastomer made from ethylene - propylene diene monomer.epdm是一种由乙烯 - 丙烯、二烯单聚物构成的三元共聚物弹性材料.Eth...
The area has been the scene of fierce fighting for three months.这一地区3个月以来不断发生激战。The fighting has been centred around the town of Vucovar.战斗主要集中在武科瓦尔镇周围。After a good night's sleep I feel fighting fit again.昨夜睡得很香，我又觉...