常見例句雙語例句A study is made of the synthesis of urea phosphate and its application on cotton by drip irrigation.研究了磷酸脲的郃成及其在滴灌棉花的施用情況。The studying of Urea-phosphate in domestic and a broad in this paper have investigated and researched, orientation of studying and exploitation has been put forward.文中通過對國內(nèi)外該産品研究現(xiàn)狀的調(diào)查研究,提出了該産品研究和開發(fā)的方曏。The invention belongs to a method for preparing ammonium alcohol polyvinyl phosphate, which comprises the preparation steps of: (1) mixing phosphoric acid and urea to obtain urea phosphate solution;本發(fā)明屬於一種聚乙烯醇磷酸銨的制備方法,其制備步驟包括: (1)將磷酸與尿素混郃,得到磷酸脲溶液;ip.com 返回 urea phosphate