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

• 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 bear's white fur is a natural camouflage.
  北极熊的白色毛皮是天然的保护色。
• 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 polar vortex is a system of wintertime winds.
  极地涡旋是冬季风形成的一个风系。
• You have a function that you want to switch between rectangular and polar coordinates.
  把一个函数，在直角坐标和极坐标中转换。
• 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。
• The Polar Aquarium I visited the Polar Aquarium today.
  极地水族馆我今天参观了极地水族馆。
• The measurement equation is linear in polar coordinates but is nonlinear in cartesian coordinates.
  量测方程在极坐标中是线性的，但在笛卡儿坐标系中却是非线性的。
• In this important respect, the US and China are polar opposites on climate change.
  在这个重要的问题上，美国和中国上下对气候变化的态度截然相反。
• It is found that the polar vortex coefficients have a close relation to the weather of out country.
  极涡系数与我国长期天气变化有着密切的关系。