您要查找的是不是：
- Daqing crude oil was separated into tree components of asphaltene, polar fraction and remaining fraction with precipitation method and silica gel column. 用沉淀法和色谱分离法将大庆原油分离成沥青质、极性物和抽余油3部分。
- The recycled oil from coal liquefaction was separated into three fractions(saturates,aromatics and polar fraction) by liquid chromatograph according to group composition. 本研究用柱色谱法对循环油的族组分进行分离,将其分成饱和烃、芳烃和极性物三组分。
- The two systems of government are polar opposites. 这两种政体正好相反。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- Keywords crude oil;asphaltene;polar fraction;remaining fraction;emulsive property; 原油;沥青质;极性物;抽余油;乳化性质;
- The soil absorbs only a fraction of the rain that beats down. 土壤只吸收猛打到地面上的雨水的一部分。
- I'll be ready in a fraction of a second. 我马上就好。
- The story does not contain a fraction of truth. 这故事没有一点真实性。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- He has done only a fraction of his homework. 他只做了家庭作业的一小部分。
- Located or found in one of the Polar Regions. 环极的，围绕极地的位于或发现于一个极地区域中的
- The car stopped within a fraction of an inch of the wall. 汽车在离墙不到一英寸的地方停住了。
- Could you move a fraction closer? 你能不能稍微再挪近点儿?
- In spite of vigilance a polar bear escape from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- She spends only a fraction of her earnings. 她只花了所赚的钱的一小部分。
- Although they can swim, the polar bears are terrestrial animals. 北极熊虽然会游泳，但也是陆栖动物。
- In spite of vigilance a polar bear escaped from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
- They represented only a fraction of the general populace. 他们代表的仅是全体国民的一小部分。
- The polar bear's habitat is the icy waters of the Arctic. 北极熊的栖息地是冰冷的北极海域。
