英语释义

• characterized by opposite extremes; completely opposed;

  "in diametric contradiction to his claims"

  "diametrical (or opposite) points of view"

  "opposite meanings"

  "extreme and indefensible polar positions"

• being of crucial importance;

  "a pivotal event"

  "Its pivotal location has also exposed it to periodic invasions"- Henry Kissinger

  "the polar events of this study"

  "a polar principal"

• extremely cold;

  "an arctic climate"

  "a frigid day"

  "gelid waters of the North Atlantic"

  "glacial winds"

  "icy hands"

  "polar weather"

• of or existing at or near a geographical pole or within the Arctic or Antarctic Circles;

  "polar regions"

• located at or near or coming from the earth's poles;

  "polar diameter"

  "polar zone"

  "a polar air mass"

  "Antarctica is the only polar continent"

• having a pair of equal and opposite charges

片语

polar windThe Earth's plasma fountain, showing oxygen, helium, and hydrogen ions which gush into space from regions near the Earth's pole The faint yellow area shown above the north pole represents gas lost from Earth into space; the green area is the [[aurora borealis-or plasma energy pouring back into the atmosphere.

Polar ecosystems极地生态体系

polar region[地理] 极地；近极区域

polar angle[数] 极角

polar axis[数][天] 极轴

polar coordinate极坐标；极座标；极坐标系统

polar cap[水文][地理] 极地冰冠；火星表面的极冠；高山冰冠

polar molecule极性有极分子

polar bond[物化] 极性键

polar bear[脊椎] 北极熊

polar solvent[化工] 极性溶剂

polar night[天] 极夜

polar body[细胞] 极体

polar vortex[气象] 极涡

polar fleece摇粒绒

polar circle[数] 极圆；[天][测] 极圈

polar ice[海洋] 极地冰

polar group[化学] 极性基团

英汉例句

• people who live near polar regions see the auroras as giant curtains of shimmering light in a variety of colors.

  居住在两极附近地区的人们所看到的极光犹如一张五彩缤纷的巨大光幕。

• because of the remote and harsh conditions throughout most of the polar regions, scientists who study them often have to rely on data collected from space for research.

  因为大部分冰冻层贯穿极地地区，地势偏僻，环境艰苦，科学家不得不利用从太空传回来的资料进行科研活动。

• this image shows part of a polar crater that still holds on to some summer ice, as well as beautiful sand dunes sculpted by the wind.

  这张照片展示了某个极地陨坑，陨坑中还保存着一些夏季冰的痕迹，在风的作用下形成了一些美丽的沙丘。

• to address these questions, scientists from china and elsewhere are rushing around the oceans from ice-cold polar regions to the indo-pacific warm pool, the warmest marine waters in the world.

  为了解决这些问题，来自中国和其他地区的科学家们从冰冷的极地地区到世界上最温暖的海水区——印度洋-太平洋暖池的各地海岸。

• in fact,we can use polar coordinates instead to compute this double integral.

  可以用极坐标代替直角坐标,来计算这个二重积分。

• the polar regions of the moon will likely play a strategic role in the first phases of lunar exploration and development.

  在月球探险和开发的第一阶段，月球的两极地带有可能成为具有战略意义的基地。

• we could target specific abnormal proteins, put a polar charge on the nanoparticles and use magnets to focus them on those areas of the tumor.

  我们可以针对不正常的蛋白质，在纳米粒中放上一个极性电荷，用磁力把它们集中到肿瘤部位。

• in the largest airborne survey of earth’s polar ice, the airplanes of operation icebridge carry an array of instruments to measure the ice from top to bottom.

  在对地球极地冰川进行的最大的一次空中调查中，执行「冰桥行动」的飞机携带了很多仪器从头到脚对冰川进行了测量。

• now, will it be polar or nonpolar?

  那么他是极性还是非极性呢？

• others have been moulded into towering pillars of ice or giant polar bridges with several intricate 「arches」 carved into them by the harsh antarctic conditions.

  在南极极端严寒的气候条件下，有些冰山被自然之手打造成高耸的冰柱或带有复杂「拱桥」的巨型极地雪桥。

• but if we fail to slow down the rate of warming, the polar regions as we know them will no longer exist —and possibly, neither will many of the species who live there now.

  但是如果我们没有减缓变暖的速度，我们所知的极地地区将不复存在——很可能，那些现在还生活于斯的动物们也会消失。

• he said that further warming could trigger polar ice cap melting.

  他说进一步的变暖可能触发极地冰帽融化。

• polar mesospheric clouds can be observed from both the earth’s surface and in orbit by astronauts aboard the international space station (iss).

  不管是在地球表面上的人还是在轨道上的国际空间站（iss）里的宇航员都能观察到极地气层云。

• at this time of year, the sun never sets over antarctica, but rather traces an arc across the local horizon, allowing polar mesospheric clouds to be observed near local midnight.

  每年的这个时候，太阳不会照耀南极大陆，但是会沿着那里的地平线划过一道弧形的轨迹，使得我们能在午夜时分目睹极地中层云景观。

• other schemes entail the placement of giant orbiting mirrors to focus sunlight upon mars’ polar icecaps, thus releasing liquid water and gaseous carbon dioxide to kick-start a greenhouse effect.

  此外，还要在火星轨道放置巨型反光镜，集中太阳光融化火星极地的冰盖，从而释放出液态的水和气态的二氧化碳制造温室效应。

• but still we could set this up and then switch to polar coordinates to evaluate this integral.

  但还是可以建立这个积分,然后转换到极坐标系下去求结果。

• but scientists from the scott polar research institute say the figures are wrong; the ice has not shrunk so much.

  但是，苏格兰极地研究所的科学家说，这些数字名不副实；格陵兰岛的冰并没有缩收这么多。

• for that reason it has focused much of its attention on the cold polar regions.

  由于这个原因，火星寒冷的两极地区成为被关注的重点。

• additionally, an unknown quantity of methane in the form of hydrates (or clathrates) lies trapped beneath the polar sea floors.

  此外，未知数量的甲烷以水合物（或气水化合物）的形式被困在极地海洋海底之下。

• both beer and shampoo have polar molecules that accumulate at a liquid–gas interface, but the mechanisms that prevent bubble collapse in soap foams or pilsner heads are fundamentally different.

  啤酒和洗发水都有极性分子，它们可以在气液分解面上积累，但是阻止气泡破掉的机制，对于肥皂沫和啤酒来说，有着根本上的区别。

• in 2003, queen elizabeth honored the intrepid morris with a polar medal, given in recognition of distinguished service in arctic and antarctic exploration.

  2003年，伊丽莎白女王授予无畏的莫里斯极地奖章，以奖励她在北极和南极探险中的出色服务。

• 「this dependency on sea ice potentially makes polar bears one of the most at-risk large mammals to climate change, 」 says mr durner.

  「这种对于海冰的依赖性潜在地决定了北极熊成为受气候变化影响风险最高的物种之一。」 德诺先生说。

• let me give you, i「m going to create, q a polar point, i」m going to call it q, and we'll give it some random values.

  让我给大家讲解下，我要去创建，一个极坐标点，然后我会去命名它为，然后我给它赋一些随机的值，好，现在我想知道。

• but there is evidence that the red planet had a warmer and wetter past: dried-up river beds, polar ice caps, volcanoes and minerals that form in the presence of water have all been found.

  但是，有证据表明，这颗红色星球上曾经有过一段温暖而湿润的过去：干涸的河床，极地冰盖，火山和只有在水中才能形成的矿物质，都在这里被发现。

相似词

arctic北极的；极寒的

glacial冰的；冰冷的；冰河时代的