您要查找的是不是：
- 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。
- chromatographic polarity 色谱极性
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- 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
- 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。
- The technique is known as adsorption chromatograph. 这种分析技术称为吸附色谱。
- Note the polarity of the voltage drop across R. 注意R上电压降的极性。
- 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。
- 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。
- Love and hatred are polar feelings. 爱与恨是完全相反的感情。
- Extending across or crossing either of the Polar Regions. 横越极地任一个横越或穿过两个极地地区中的
- The chromatographic analysis of insulin is a new field. 而胰岛素的色谱分析是一个年轻的领域。
- A polar bear has a preference for cold weather. 北极熊喜欢寒冷的天气。
- The designing of chromatographic columns switch system control so. 本文介绍了色谱柱切换系统控制软件的主要功能以及软件系统的设计。
- Alaska still is a land of iceberg and polar bear. 阿拉斯加现在仍是冰山和北极熊的世界。
- The feature of chromatographic fingerprint Analysis! 色谱指纹图谱分析的特点!
- Magnetic polarity;ionic polarity. 磁极性，离子极性
