Preparation of cupric sulfate from waste electric component lead is introduced.提出了回收电子元件废引线并以此为原料制取硫酸铜的方法.Cupric azide is insoluble in water.叠氮化铜不溶于水.The paper discusses a new method for producing cupric feed copper sulf...
大街的两旁种着蓝花楹，绽放的花朵汇成一片紫色的海洋。The avenues lined with jacaranda trees burst into a carnival of purple.他穿着紫色的衣服.He is in purple.那朵紫色的花多漂亮 啊 !How beautiful the purple flower is!...
David had been on a pub crawl with pals from his rugby club.大卫曾和他橄榄球俱乐部的朋友们一起串酒吧喝酒。The rooms were a crawl with the small cleaning animals, all rubber and metal.橡胶做的,金属做的小小的清洁动物在房间里忙碌着.As it grew dark in the ruined church...
A heat - relieving beverage is prepared using cogongrass rhizome, mulberry leaf and licorice as the main ingredients.以白茅根 、 桑叶、甘草为主要原料,辅以蜂蜜、柠檬酸、白砂糖,研制出色香味俱佳、清热解暑的保健饮料.The tin - free steel has been used for the manufactur...