您要查找的是不是：
- non - polar variation of latitude 非极纬度变化
- The internal cause includes polarity variation, inbred variation, instability of hybridization and gene mutation. 内因主要包括极性发生变异、自交产生的变异、杂交种性不稳定和基因突变；
- 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。
- Prices have not shown much variation this year. 今年物价没显出多大变化。
- Prices are subject to variation. 价格可以变动。
- 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
- The petitioner ask for a variation in her maintenance order. 上诉人要求对她生活费的命令的条件进行变更。
- The dial records showed a very slight variation in pressure. 刻度盘显示出压力有极微小的变化。
- 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。
- polar variation 极变化
- The song sounds like a variation of a very old and familiar tune. 这首歌像是一个熟悉的旧曲调的变奏曲。
- 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。
- The song sound like a variation of a very old and familiar tune. 这首歌像是一个熟悉的旧曲调的变奏曲
- Love and hatred are polar feelings. 爱与恨是完全相反的感情。
- Such a range of variation is termed a cline. 这样一个变异区域称为梯度变异。
