Temperature a critical condition for the manufacture of pseudo - boehmite ( PB ) .温度是 拟 薄水铝石制备至关重要的条件.The ability of synthetic boehmite to remove phosphate ions from milk was investigated.本文主要讨论合成勃姆石有效去除牛奶中磷酸离子的能力.Alumin...
他穿得很奇怪，衬衫和裤子外面套着件镶褶边的粉红围裙。He was wearing, astonishingly, a frilly pink apron over shirt and trousers.厨用围裙裹着她的腰部。The cook's apron covered her middle.她在围裙上擦了擦沾满面粉的双手。She wiped her floury hands on her apron....
After the chairman delivered his opening speech, Mr. black launched into a brilliant tirade.主席致开幕词后，布莱克先生作了精彩的长篇演说。He launched an immoderate tirade on Turner.他针对特纳发表了一篇极端激愤的长篇演说。to launch into a tirade热衷于大发议论She launched...
方法: 采取凝胶过滤方法分别提纯上述花粉变应原.METHODS: The pollen allergens were purified by gelatin filtration.目的从樟树花粉中克隆泛变应原基因.Objective To clone new panallergen genes from pollen Cinnamomum camphora.观察125例变态反应性鼻炎变应原鼻内激发试验前后鼻阻力变化.Allergen n...