The preparation of sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.用经高温煅烧后的闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸铜.Modified polymerized sulphate flocculating agent was made with ferrous sul...
He embraces the new information age...他迎接新的信息时代的到来。Natural science embraces many subjects.自然科学包括许多学科.This course of study embraces every aspect of the subject.本课程涉及这门学科的每个方面.His statement embraces all his arguments.他的发言包...
我们二十人不能只沏一份 ( 如茶 ).We'll need more than one brew ( eg of tea ) for twenty people.睡觉前4小时别喝含有咖啡因的饮料, 如茶 、 咖啡 、 可乐及巧克力.Avoid caffeinated drinks, such as tea, coffee, cola and chocolate, four hours before bed.人生如茶, 有淡淡的...