Preventers are usually brown, red or orange inhalers.这些预防类药物通常是褐色, 红色或者橙色的.How can we improve engines, inhalers, and extinguishers?我们怎样改进引擎 、 喷雾器和灭火器?...
Chloral hydrate is a rapidly effective hypnotic.水合氯醛为一种作用迅速的催眠药.Chloral is a colorless, volatile liquid with a very penetrating odor and boiling at 97.7℃.三氯乙醛是无色挥发性的液体,带有刺激性很强的气味,在97.7℃沸腾.Condensation of phenol and chlor...
Mills have iron pillars all over the place holding up the roof.工厂里四处都立有铁柱支撑着房顶。Before sentence was passed, Mr Mills escaped from jail.在宣判前，米尔斯先生越狱了。There is, it seems, some bad blood between Mills and the Baldwins.米尔斯和鲍德...
Many groups can be added by nucleophilic substitution on a diazonium salt.许多基团可通过向得自胶的重氮盐作亲核取代而加以导入.Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.大多数连于芳核能被直接取代的基团仅限于重氮盐....
After about three months, I was no longer addicted to nicotine.大约3个月后，我就不再对尼古丁上瘾了。She had become addicted to golf.她已经迷上高尔夫球了。She was addicted to barbiturates.她对巴比妥酸盐产生了依赖性。...