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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。
A longitudinal cut from the trunk of a tree. 料板，板皮从树干上纵切下的一块木材
Longitudinally polarized electrons are the electrons with spin and momentum pointing in the same direction. 纵向极化电子，就是自旋和动量方向相同的电子。
Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
longitudinal polarization 纵向极化
longitudinal polarization wave 纵偏振波
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 longitudinal girder forms part of the parapets. 纵梁成为栏杆的一部分。
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 longitudinal cords are termed connectives. 纵走的索称为连索。
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。
Entry clamp with longitudinal and cross traverse. 可纵向、横向运行的进口夹钳
Love and hatred are polar feelings. 爱与恨是完全相反的感情。
Whether profession longitudinal association member? 是否行业纵向协会成员?
A main longitudinal vein in a leaf. 叶片上主要的纵脉。
Such a field is called a longitudinal field. 这种电场称为纵向电场。