“脲甲醛”的概念、定义、翻译、参考文献-科学参考

单词	脲甲醛
释义	脲甲醛 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	self-protection electronic jamming self-protective techniques of unguided travel self-published Self-Publishing self-publishing self pulsing laser self-pulsing laser self-pumping self purification of water body self-purification of water body selfquenching self-quenching counter self-quenching streamer counting tube self-quenching streamer tube self-radiant excitance self radiolysis self-radiolysis self-rated health self-rating anxiety scale，SAS self-rating depression scale，SDS self-reaction force self-reactive B cell self-reactive substances self-reactive T cell self-reciprocal function

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