“hexamethylene diamine”的概念、定义、翻译、参考文献-科学参考

单词	hexamethylene diamine
释义	hexamethylene diamine Encyclopedia 工学己二胺释 1,6-diaminohexane；hexamethylene diamine己二胺分子式NH2(CH2)6NH2，具有6个碳原子的脂肪族二元胺。别名1,6-己二胺；己撑二胺或六次甲基二胺。常温下为白色片状的结晶体，有氨臭，可燃，熔点39～43℃，沸点204～205℃，微溶于水，本品毒性较大，为强碱性有机物，同时也是一种对人体有生理效用的毒性物质。
随便看	polynomial time class P polynomial time complexity class polynomial time complexity class, P polynomial time computable distribution polynomial time hierarchy polynomial time many-one reducible to polynomial time reducible language polynomial time reduction polynomial time samplable distributions polynomial time Turing reducible to polynomial trend polynomial triangle center polynomial valuation polynomial-valued polynomial vector field polynomial without affect polynomial without constant term polynorbornene polynosic polynuclear polynuclear coordination compound polynuclear metal complex polynucleate polynucleotidase polynucleotide

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