The physical properties of rubber accelerator 2 - mercapto benzothiazole and main methods for its preparation are introduced. 介绍橡胶硫化促进剂 2- 巯基苯并噻唑的物理性质和主要的制备方法.
Its tallest volcano, long extinct, is Olympus Mons.它最高的火山是早已熄灭的奥林波斯山。The extinct volcano's eruption would mean a cataclysm for the city.死火山又重新喷发,对这座城市来说意味着大难临头.Is there anything could rekindle his extinct passion?有什...
在主要的候选人中，只有加维里亚一人坚决表示要继续打击药品同业联盟。Alone among the major candidates, Gaviria expressed a determination to continue the campaign to defeat the drugs cartels.教师同业们声称待遇太差.The teaching profession claim that they are badly paid...
Were you surprised that his disease progressed so quickly?他的病情发展得这么快，您是否感到意外？Life was hard, and it became harder as the war progressed.那时候生活很艰难，并且随着战争的持续愈发艰难了。He started with sketching and then progressed to painting.他先是...
Doctors also treat irregular heartbeats with another device called a pacemaker.医生还会使用另外一种称为“心脏起搏器”的设备来治疗心律不齐.A sad and lonely tune. There's only piano and heartbeats. Nothing else.悲伤孤独的旋律, 唯有钢琴与心跳, 别无其他.Smoking coul...