The telex chattered all day and night with news bulletins.电传机没日没夜“嗒嗒嗒”地接收新闻稿。I just got BBC on shortwave. Same bulletins as last night.我刚刚收听了英国广播电台的短波,和昨天晚上一样的新闻.Molly's daily bulletins from the houte half a mile aw...
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...
...a tank of gas.一桶汽油In the reaction of chlorination, carbon tetrachloride was used agent, and chlorine gas as chlorinating agent.在氯化反应中, 以四氯化碳为溶剂, 氯气为氯化剂.This paper investigated the process of avalanche growth in electr...
目的: 探讨单纯鼓室成形术后发生胆脂瘤的原因并提出预防措施.Objective : To investigate the reasons of the second cholesteatoma of postoperative tympanoplasty.目的探讨外耳道胆脂瘤的病因和治疗方法.Objective To study the cause and treatment of external acoustic meatus ch...