polar

英 [ˈpəʊlə(r)]

美 [ˈpoʊlər]

adj.  极地的; 近地极的; 南极(或北极)的; 磁极的; 完全相反的; 截然对立的

复数：polars　

CET6考研TOEFLIELTSGRETEM8

Collins.1 / BNC.7165 / COCA.6795

牛津词典

adj.

• 极地的；近地极的；南极（或北极）的
  connected with, or near the North or South Pole
  1. the polar regions
     极区
  2. polar explorers
     极地探险家
• 磁极的
  connected with the poles (= the positive and negative ends) of a magnet
  1. polar attraction
     极向引力
• 完全相反的；截然对立的
  used to describe sth that is the complete opposite of sth else
  1. The parents' position is often the polar opposite of the child's.
     父母的观点常与孩子的完全相反。

柯林斯词典

• ADJ 近地极的；极地的
  Polarmeans near the North and South Poles.
  1. ...the rigours of life in the polar regions...
     在极地地区生活的艰苦
  2. Warmth melted some of the polar ice.
     温暖的天气融化了一些极地的冰雪。
  3. ...polar explorers.
     极地探险者
• ADJ （在性质、类型等方面）完全相反的，截然对立的
  Polaris used to describe things which are completely opposite in character, quality, or type.
  1. In many ways, Brett and Bernard are polar opposites.
     在许多方面，布雷特和伯纳德截然不同。
  2. ...economists at polar ends of the politico-economic spectrum.
     政治经济观点完全对立的经济学家

双语例句

• This paper puts forward a method of target recognition based on multi-feature integration and polar coordinates transformation.
  提出一种基于多特征融合和极坐标变换的目标识别方法。
• If you want to say polar bear, you can just say it.
  你要想说是北极熊你就直说好了。
• The first thing you'll see on Mars will be one of the polar ice caps.
  在火星上你看到的第一件东西是两个极地冰帽中的一个。
• I have a big one with polar bears in it.
  我有一个大的球形玻璃器，里面有北极熊图案。
• The polar vortex is a system of wintertime winds.
  极地涡旋是冬季风形成的一个风系。
• In many ways, Brett and Bernard are polar opposites.
  在许多方面，布雷特和伯纳德截然不同。
• We only have the one bond so the actual HF molecule is polar, it has a net dipole.
  但HF中只有一根键，所以分子也是极性的而甲烷中有一个网状偶极。
• The polar and egg nuclei of the female gametophyte are genetically identical.
  雌配子体中的极核和卵核遗传上是同一的。
• DPPH radical scavenging activities of different polar extracts in vinegar were studied, and total phenolic content was determined.
  研究了镇江香醋中不同极性组分对DPPH自由基的清除活性，并测定了各极性组分中的总酚含量。
• It has an atmosphere, seasons, and distinctive polar ice caps.
  它也有空气、季节和独特的极地冰冠。