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在所得的丙酮肟中, 滴加浓硫酸或浓盐酸,可以分别得到固体的硫酸羟胺或盐酸羟胺.Dropped hydrochloric acid or sulfuric acid to acetone oxime, solid hydroxylamine could get....
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chimpanzees的音标：...
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“囟”的拼音为：xìn...
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n.二芳基...
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从中提取的松香和鞣酸是化学工业上很需要的.The risin and tannin that can be extracted from it are sought by the chemical industry.从3点钟以后,它们就燃烧着松香.From three o'clock onward they would be burning resin.在实验室内用一 步法 合成了松香改性壬基酚醛树脂.Rosin modifi...
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amble的一般过去时为：ambled...
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n.庆祝，庆祝会（仪式），颂扬...
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n.宣誓口供，宣誓书...
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“分度规”的英语可以翻译为：index gauge，protractor ...
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metachrosis的音标：metachrosis的英式发音音标为：[ˌmetə'krəʊsɪs]metachrosis的美式发音音标为：[ˌmetə'kroʊsɪs]...
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furbelows的音标：...
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“晕机”的拼音为：yùn jī...
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n.触媒剂，催化剂...
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It's an ideal proving ground for the new car.这里是个理想的新车试验场。The Minister was proving unbending on key issues.在关键问题上该部长决不通融.He has determined on proving his friends'innocence.他决心替他的朋友洗清罪名....