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- With a microscopic examination,it was showed that two strains were all Gram negative,short rod bacteria with a single polar flagellum. 镜检结果表明，两个菌株均为极生单鞭毛的革兰氏阴性短杆形细菌。
- The two systems of government are polar opposites. 这两种政体正好相反。
- One of two usually recognized orders of true bacteria,gram-negative spiral or spherical or rod-shaped bacteria usually motile by polar flagella,some contain photosynthetic pigments. 两个公认的真细菌目之一，革兰士阴性螺旋形球形或杆形细菌，通常通过极性鞭毛移动，有的含有光合色素。
- There are distinguished polarity marker proteins of polar flagella or pili, but relative few researches have been reported. 细菌在面临环境因素（如：养分浓度、温度、渗透压等）变化时，亦有形态上的变化。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- polar flagellum 极性鞭毛
- 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
- They have a whiplike structure called a flagellum. 它们有像鞭子一样鞭毛结构。
- 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。
- 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。
- Strictly the term is now reserved for the bacterial flagellum. 目前该术语专用于细菌鞭毛。
- 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
- Having one flagellum at only one pole or end,as certain bacteria. 单鞭毛的只在一极或一端有一个鞭毛的，如某种细菌
- A polar bear has a preference for cold weather. 北极熊喜欢寒冷的天气。
- An organism,such as a euglena,that is equipped with a flagellum. 一种生物，例如鞭毛虫，有鞭毛
