Once its impurities had settled, the oil could be graded...一旦杂质沉淀下去，油就可以分级了。The separation and determination of the primary impurities of diflubenzuron by liquid chromatography were carried out.通过反相液相色谱方法往甲醇与水的混合流动相中加入适当...
Once its impurities had settled, the oil could be graded.一旦杂质沉淀下去，油就可以分级了。A filter will remove most impurities found in water.过滤器会滤掉水中的大部分杂质。Oil is refined to remove naturally occurring impurities.油经过提炼去除天然存在的杂质。...
The book is a demonstration of scholarship without pedantry.这本书表现出学术水平又不故意卖弄学问.Generation gap, conservation, reminiscence, pedantry and stubbornness all basically derive from that.代沟, 保守, 怀旧, 迂腐顽固,基本都源于此.Pedantry is the ...
安德鲁过去只要看见狗，无论在哪里，无论什么狗，都会吓得一动不动。Andrew went rigid when he saw a dog, any dog, anywhere.昨晚，飓风“安德鲁”进入了墨西哥湾。Hurricane Andrew was last night heading into the Gulf of Mexico.最后，安德鲁向他们透露了一点信息。At last Andrew gave them a crumb o...