“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	United Chinese School Committees'Association of Malaysia United Chinese School Teachers'Association of Malaysia United Church of Christ United Collabarative Digital Reference Services United Daily News United Evening Paper United Front United Gold Coast Convention United Ireland Party United Kingdom aviation United Kingdom Infrared Telescope United Kingdom Meteorological Office United Kingdom national industrial symbiosis program United Kingdom of Hebrews United Kingdom Schmidt Telescope United Malays National Organization，UMNO united motivity test United National Convention United National Independence Party United National Party United Nation Conference on Desertification United Nation Economic Commission for Latin America and the Caribbean United Nations Centre for Human Rights United Nations Commission on International Trade Law United Nations Committee of Peaceful Uses of Outer Space

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