Study on the Silane Crosslinked Polypropylene Synthesis of N-phenyl-N-ureido substituted cinnamamides 硅烷交联聚丙烯的研究N-苯基-N-脲基取代桂皮酰胺类衍生物的合成
The Synthesis and Applied-research of Ureido-urethane 脲基氨基甲酸酯化合物的合成及应用研究
But when it is of butyl or ethyl type, the collector containing ureido radical has a collecting power much lower than that of the collector containing thioureido radical. 烃基为己基时2种捕收剂的捕收能力相近,但烃基为丁基和乙基时含脲基者的捕收能力远低于含硫脲基者。
Research on a New Technology for Ureido-nitrogenous-phosphatic-potassium Compounded Fertilizer 尿基氮磷钾复合肥新工艺的研究
Reemphasize that ureido& grease shall be greatly developed in China 再谈当前我国应该大力发展脲基脂