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

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

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。

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

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