Preparation of salicylic hydrazide . Controlling material mole ratio and the product recrystallization is the key.水杨 酰肼的制备控制原料的摩尔比、产物的重结晶是关键.A new method for determining hydrazide group introduced to polymethyl acrylate ...
我对肯德尔及其公司的忠诚加深了。My allegiance to Kendall and his company ran deep.克雷弗克一笑，脸上的皱纹就加深了。When Crevecoeur smiled, the creases in his face deepened.他加深了人们对英国人不擅长语言的印象。He had increased Britain's reputation for being bad at l...
The wallpaper was peeling away close to the ceiling.天花板附近的壁纸在剥落。The Coronata wallpaper lends a formal air to the dining room.科罗娜塔墙纸给餐厅增添了一种整齐有致的气氛。We were going to wallpaper that room anyway.反正我们本来就打算在那间屋里贴墙纸的。...