benzene
n. [有化] 苯
2025-11-23 09:09 浏览次数 16
n. [有化] 苯
tetramethyl benzene四甲基苯
benzene poisoning[医] 苯中毒
dodecyl benzene sulfonate十二烷基苯磺酸盐
substituted benzene取代苯
benzene ring[有化] 苯环
ethyl benzene乙苯;苯乙烷
Benzene extractives苯浸取法
benzene sulfonic acid苯磺酸
benzene series[有化] 苯系
trimeric benzene三聚苯
allyl benzene烯丙苯
dinitro benzene[有化] 二硝基苯
benzene dichloride二氯化苯
dodecyl benzene十二烷基苯磺酸钠
friedrich kekule discovers the unique ring like structure of the molecule benzene right after he wakes up from a day-dream about snakes chasing their own tails and forming rings.
弗里德里希·凯库勒发现分子苯的结构想一个环状的客观事实,正是醒于当天的一个白日梦后知道的,在梦里他梦见一群蛇都在追逐着各自的尾巴,于是形成了好多环形。
「the refinery was just hemorrhaging benzene into the atmosphere, 」 she says.
她说「精炼厂一直在向空气中排放苯。」
federal rules in 1995 required the plant, one of two refineries koch owns in corpus christi, to reduce benzene emissions to less than 6 metric tons a year.
1995年根据联邦规定,科赫公司科珀斯克里斯蒂的两个精炼厂之一必须将它的苯排放量降低到每年6公吨之内。
she found 91 metric tons of uncontrolled benzene emissions, more than 15 times higher than what the rules allowed.
她发现有91公吨未经控制的苯排放,比规定量高出15倍还多。
that's what happens if you have a mixture of benzene and water, for instance.
苯和水的混合物就是这样子,举个例子。
others, though, were extremely toxic, such as benzene and lead.
但也一些含有巨毒,如苯和铅。
so, of course, this is resonance so we can go ahead and put our resonance notation in there to indicate that benzene is a resonance structure.
当然,这是共振的,所以我们可以在这里标上共振记号,表明苯环是一个共振结构。
burning and inhaling that heady mix of tar and nicotine, not to mention the benzene and other chemicals in tobacco smoke, can promote lung cancer and emphysema.
烟民们吞云吐雾时,自然会吸入不少焦油和尼古丁,更别说烟雾中还有苯这类会诱发肺癌和肺气肿的有害化学物质。
in late 2005 an explosion at a chemical plant in north-eastern jilin province sent a slick of toxic benzene 80km long into the songhua river.
2005年末,东北吉林省的某化工厂发生爆炸,致使松花江80公里的河面上漂浮了一层有毒苯。
white, but not black, infants who showed exposure to ethyl benzene had four times the risk of chd.
除开黑人婴儿,接触过乙苯的白人婴儿罹患冠心病的风险是一般婴儿的四倍。
other sources of ethyl benzene include vehicle exhaust, petrol pump vapors and cigarette smoke.
其它一些乙苯的来源包括尾气排放、汽油泵蒸汽以及吸烟。
benzene, a chemical compound refined from crude oil, was found to cause leukemia in 1928 by two italian doctors who detected the cancer in a worker exposed to benzene for five years.
苯是原油中提炼出来的化学合成物,1928年两个意大利医生检测到一名工人因长达五年的时间里暴露在苯环境中而患有癌癥,他们发现苯可引发白血病。
benzene is a known cause of acute myleoid leukemia, and cigarette smoke is a major source of benzene exposure.
众所周知,苯是急性髓系白血病的元兇之一,而吸烟是苯暴露的一个主要来源。
benzene is a highly poisonous toxin that is also carcinogenic.
苯是一种有高毒性的毒素,它会致癌。
among u.s. smokers, 90% of benzene exposures come from cigarettes.
在美国的吸烟人群中,90%的苯暴露来自于烟草。
benzene levels in its soilare said to be 43,000 times the safe limit.
东部地区土壤里的苯含量据说超过安全限制43,000倍。
i think most and you have talked a little bit about benzene over this past week in recitation.
我想你们大多数人,都在这周的习题课上讨论过苯环。