“urea formaldehyde”的概念、定义、翻译、参考文献-科学参考

单词	urea formaldehyde
释义	urea formaldehyde Encyclopedia 工学尿素释 urea formaldehyde脲甲醛由尿素和甲醛在一定条件下反应缩合的产物。白色无味粉末或颗粒状，难溶于水，不挥发，不吸湿，施入土壤后，在水解与微生物侵袭的双重作用下缓慢地释放其养分。它不是单一化合物，而是由链长与分子量所不同的甲基尿素缩合而成，其中包含从一甲基二脲至五甲基六脲等系列聚合物，其全氮（N）含量大约38%。
随便看	supported supported catalyst supported cluster supported clusters supported discharge supported employment supported liquid membrane extraction support effect support electronic jamming support equipment of aircraft materiel supporter supporter-general of the state support facilities of aircraft materiel support for elder support function support functional support half space support half-space supporting supporting aircraft for flight test supporting cell supporting electrolyte supporting force supporting function supporting functional

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