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 wolfed down the rest of the biscuit and cheese.他把剩下的饼干和奶酪一扫而光。He wolfed ( down ) a good meal.他 狼吞虎咽 地吃了一顿美餐.The Russian soldiers sampled the officers' rations and wolfed the superior food with delight.俄军士兵尝了一下长官的...
为达到理想的视觉效果有时还会加入颜料和染色剂.Pigments and tints are sometimes added to achieve the desired visual effect.用对比染色剂染 ( 显微术样本 )To color ( a microscopic specimen ) with such a stain.汽水中使用的染色剂也是一种致癌物质.Colorings used in sodas are canc...
Daring is not the same as foolhardiness , and Xiangzi though daring was never foolhardy.假若胆壮不就是大意, 祥子在放胆跑的时候可并不大意.He paid for the foolhardy act with his life.他为鲁莽的举动付出了生命的代价.It was foolhardy to have refused.拒绝是极不明智的。It w...
The lines of his fastidious face showed a vague disquietude.那过分讲究的面孔上的表情是一种隐隐的不安.The disquietude of his air, the somewhat apprehensive impatience of his manner, surprised me.他神情不安, 急躁的举止中有点担忧, 这使我吃了一惊....
Current employment laws will be changed to reward effort and punish laziness.现行雇佣法要变，要奖勤罚懒。As rust is to iron, so is laziness to man.懒惰对于人好比铁生了锈.The primary cause of Tom's failure is his laziness.汤姆失败的根本原因是懒惰....