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...
你指的是我吗？Do you mean me?当贝蒂说她知道我们的秘密时,她指的是什么?What was Betty getting at when she said she knew our secret?谈到谷物,我们指的是小麦 、 燕麦 、 黑麦 、 大麦之类的东西.By cereals we mean wheat, oats, rye, barley, and all that....
It was an explosion of anger against the practices of the occupying forces.这是人们不满占领军行为而爆发的怒火。" What's so wonderful about occupying Nanking Road for a whole day, anyway?“ 就是 整天占据了南京路, 也不算什么了不得呀!The territory was carv...
妇女的需求被认为要服从团体的利益。The woman's needs are seen as subservient to the group interest.英国妇女的乳腺癌患病率很低，着实令人羡慕。Britain has an enviable record on breast screening for cancer.利兹大学为期一天的关于维多利亚时代妇女的专题讲座a day school at Leeds Unive...
沉积岩的组成大部分为杂砂岩相的浊积岩.The sedimentary members are largely turbidites of greywacke facies.杂砂岩任何含有页岩的多种黑灰色砂岩之一.Any of various dark gray sandstones that contain shale....