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。...
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...
大约20年前, 即本世纪40年代,弗莱蒙特?雷德曾作出过完全相同的结论.Some twenty years previously, in the nineteen - forties , Fremont Rider had arrived at precisely the same conclusion.圣莫尼卡湾或蒙特雷公园怎么样?How about Santa Monica Beach or Monterey Park?我一点不了解...
将面粉和发酵粉筛入中等大小的搅拌碗中。Sift the flour and baking powder into a medium-sized mixing bowl.把生面团倒在撒了面粉的案板上。Turn out the dough on to a floured surface.将多余的面粉抖落干净，再把肝脏放进锅中。Shake off any excess flour before putting livers in the pa...
正如贵方信中所提到的，我也认为从政治角度来说，有一些词语表意上的问题。Further to your letter, I agree that there are some presentational problems, politically speaking.表意图形可能会模棱两可,直到你如果确实了解其意思.Pictographs can be ambiguous until you learn their meaning.符号具...