dialkyl alkylphosphonate
膦酸二
的dialkyl alkylphosphonate
膦酸二
Through IR analysis, the main component in group II was identified as dialkyl-benzene, while in Group III was monoalkyl-benzene as well as dialkyl-tetralin and indane (DTI).
然后用紫外法求得了第Ⅱ族组分中邻、间二苯之和
对二苯的质量比约为1∶409。
声明：以上例句、词性分类均
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