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One might expect azomethane to have a Y structure similar to that of acetone ( CH 3 ) 2 CO.可以预期偶氮甲烷分子具有和丙酮 ( CH3 ) 2CO分子相似的丫形结构....
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dichloroiodomethane的音标：dichloroiodomethane的英式发音音标为：[daɪklərɔɪɒdəme'θeɪn]dichloroiodomethane的美式发音音标为：[daɪklərɔɪɒdəme'θeɪn]...
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n.氟代甲烷...
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difluoromethane的音标：difluoromethane的英式发音音标为：['daɪflʊərəʊmi:θeɪn]difluoromethane的美式发音音标为：['daɪflʊəroʊmiθeɪn]...
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dimethoxymethane的音标：dimethoxymethane的英式发音音标为：[daɪmeθɒksɪ'meθeɪn]dimethoxymethane的美式发音音标为：[daɪmeθɒksɪ'meθeɪn]...
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A kind of polyetherester polyurethane was synthesized by polyetherester polyol, 4 , 4� � - diphenylmethane diisocyanate and 1, 4 - dihydroxybutane.制备了以自制聚醚酯多元醇 、 二异氰酸酯和1, 4- 丁二醇交联剂为原料合成的聚氨酯弹性体,研究了其力学性能....
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氯二氟甲烷...
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chloromethane的音标：chloromethane的英式发音音标为：[klɔ:rə'meθeɪn]chloromethane的美式发音音标为：[klɔrə'meθeɪn]...
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n.二氯氟甲烷...
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chlorotrifluoromethane的音标：chlorotrifluoromethane的英式发音音标为：[klərəʊt'raɪflʊərəʊmi:θə]chlorotrifluoromethane的美式发音音标为：[kləroʊt'raɪflʊəroʊmiθə]...
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dichlorodibromomethane的音标：dichlorodibromomethane的英式发音音标为：[daɪklɔ:rədaɪbrəʊmə'meθeɪn]dichlorodibromomethane的美式发音音标为：[daɪklɔrədaɪbroʊmə'meθeɪn]...
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aminodiphenylmethane的音标：aminodiphenylmethane的英式发音音标为：[æmɪnəʊdɪfenɪl'meθeɪn]aminodiphenylmethane的美式发音音标为：[æmɪnoʊdɪfenɪl'meθeɪn]...
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methane的音标：methane的英式发音音标为：['mi:θeɪn]methane的美式发音音标为：['meθeɪn]...
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二氟二溴甲烷...
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n.重氮甲烷...
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n.重氮甲烷...
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fluoromethane的音标：fluoromethane的英式发音音标为：[flu:ərə'meθeɪn]fluoromethane的美式发音音标为：[fluərə'meθeɪn]...
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n.二甲基甲烷，丙烷...
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dichlorodifluoromethane的音标：dichlorodifluoromethane的英式发音音标为：[daɪklɔ:rəʊdaɪflu:ərə'meθeɪn]dichlorodifluoromethane的美式发音音标为：[daɪklɔroʊdaɪfluərə'meθeɪn]...
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methylmethane的音标：methylmethane的英式发音音标为：[meθɪl'meθeɪn]methylmethane的美式发音音标为：[meθɪl'meθeɪn]...
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Methane gas does collect in the mines around here.周围的矿井里的确有沼气聚积。The ignition of methane gas killed eight men.甲烷起火，致使8人丧生。Methane and propane are alkanes.甲烷和丙烷是烷烃。...
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n.二甲氧基甲烷...
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diazomethane的音标：diazomethane的英式发音音标为：[daɪæzəʊ'meθeɪn]diazomethane的美式发音音标为：[daɪæzoʊ'meθeɪn]...
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fluomethane的音标：fluomethane的英式发音音标为：[flu:ə'meθeɪn]fluomethane的美式发音音标为：[fluə'meθeɪn]...