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某些苯代 ( 或多苯 ) 环氧乙烷是制取带苯环 ( 或二苯 ) 碳烯的极好原料.Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes.碳烯也可与醇反应.The carbene also reacts with alcohols.采用负载氢氟酸的USY分子筛作为催化剂,以苯...
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n.珍珠菜，千屈菜adj.千屈科植物的...
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学生常常赶数百英里的路来到这里。Students often travel hundreds of miles to get here.他常常讽刺或挖苦人，有时又会大发雷霆。He was often caustic and mocking, or flew into rages.就像子女一样，父母也常常很注重保护他们的私生活。Like their children, parents are often defensive about t...
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“外转”的英语可以翻译为：[医] abversion，exodeviation ...
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It's a two - component , reinforced etch primer, containing phosphoric acid and corrosion - inhibitive pigments.一种含有磷酸和 防腐蚀 颜料的双组份加强型磷化底漆.OBJECTIVE To discuss the inhibitive activity of proteinase of hypoxic cells r...
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illegitimation的音标：illegitimation的英式发音音标为：[ɪlɪdʒɪtɪ'meɪʃən]illegitimation的美式发音音标为：[ɪlɪdʒɪtɪ'meɪʃən]...
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n.衬衫，衬衣，内衣，汗衫...
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“鼻祖”的拼音为：bí zǔ...
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“肠胃的”的英语可以翻译为：enterogastric，gastrointestinal ...
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patriot的近义词/同义词有：flag-waver, jingo, nationalist, chauvinist, statesman, loyalist, jingoist。n.patriot的近义词（爱国者）：flag-waver, jingo, nationalist, chauvinist, statesman, loyalist, jingoist。...
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反馈...
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鉴别坠机意外伤亡者的工作费时而且困难重重。The identification of the crash victims was a long and difficult task.昨天,伤亡者在加沙的希法医院堆积起来.The wounded and dead piled up at Gaza's Shifa hospital yesterday.我们把伤亡者抬出了战场.We carried the dead and ( th...
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n.（给无实际治疗需要者的）安慰剂( placebo的名词复数 )，安慰物，宽心话，（试验药物用的）无效对照剂...
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石松纲...