| 词汇 | polar |
| 释义 | polar adjective uk /ˈpəʊ.lər/ us /ˈpoʊ.lɚ/ polaradjective (PLACE)relating to the North or South Pole or the areas around them: 两极的;近两极的 the polar ice caps极地冰冠 polar explorers 129 men disappeared on this ill-fated polar expedition. The terrible beauty of the polar regions has fascinated many. We tracked seasonal changes, such as the comings and goings of polar ice, clouds, and dust storms. Warm air from the south collides with polar air from the north. Countries, nationalities & continents: continents & regions of the world Afrocentric Afrocentrism amazonian Antarctica Antipodean black Africa Caribbean interhemispheric Lapland LATAM Latin America meridian parallel pole the Antipodes the International Date Line the Pacific Rim the South Pole the subtropics the Tropic of Cancer polaradjective (OPPOSITE)Polar opposites are complete opposites: 截然相反的 The novel deals with the polar opposites of love and hate.这部小说涉及爱和恨的两个对立面。 completely different oppositeTheir two daughters may look alike, but they are completely opposite to one another. polar oppositesLove and hate are polar opposites. identicalHis opinions are identical to his spouse's. antitheticalHis actions were absolutely antithetical to our code of conduct. converseIf we ask what a citizen must sacrifice for the good of the nation, we must ask the converse question: what will the nation sacrifice for the good of its citizens? He becomes increasingly drawn into their exciting lives, the polar opposite of his lonely one. On issues including abortion and gay rights he stands in polar opposition to the socially liberal mainstream of his party. He represents an almost polar contrast to his brother. Opposites antinome antithesis antithetical antonymous anything countervailing force diametric diametrical dichotomist dichotomous exactly extreme flip side opposite or otherwiseidiom otherwise polarity pole poles apartidiom reverse polaradjective (maths)mathematics specialized relating to poles(= the two points at which a straight line through the centre of a circle cuts the surface of a sphere): It is best to use polar coordinates to locate points in the plane. Geometry: describing angles, lines & orientations angle of incidence angularity antinode asymptote asymptotic diagonal gradient interior angle multiaxial non-coplanar non-intersecting non-planar reflex shallow supplementary transversal triangulate unbowed vanishing point vertically polar noun[ C ] mathematics specializeduk /ˈpəʊ.lər/ us /ˈpoʊ.lɚ/ a straight line at an angle of 90 degrees to another line that passes through the centre of a circle and another given point: Given a circle c with center O and a point P, there is a special line called the polar of P. Geometry: parts of geometrical shapes -sided angle axis axisymmetric bulky chord circumference conic corresponding sides hemisphere inclination node perimeter planar plane pole quadrant quadric symmetrical symmetrically polar | American Dictionarypolar adjective us/ˈpoʊ·lər/ polaradjective (OF A PLACE)[ not gradable ] of or near the area around the most northern or most southern points of the earth: the polar ice cap a polar expedition polaradjective (OF ELECTRICITY)relating to either of the two ends of a magnet or two parts of a battery (= device that produces electricity) which have opposite charges: fig. The play’s main characters are polar opposites (= They are completely opposite). chemistry Polar also describes a substance whose molecules have opposite positive and negative poles Examples of polarpolar The resemblance in morphogenesis and final structure of cnidarian nematocysts and myxozoan polar capsules remains to be explained. Three polar assumptions about economic openness are successively handled. The kinetics of polar body formation were also fastest in pyruvate-containing medium. Happily his impressive career is reasonably well documented, and it is certain that his wartime and polar efforts will not be forgotten. The gauge response behaves as two-polar periodical signal with gradually decreasing amplitude. Cellular uptake of an alpha-helical amphipathic model peptide with the potential to deliver polar compounds into the cell interior non-endocytically. The task is mapped into polar coordinates as a task crescent with required orientation. The polar regions will play no part in this particular naval celebration, but their imaginative reach continues in new configurations. Lateral flagella were not clearly visible, but 2-5 polar flagella (2-3 times the length of the cell) were observed. In his age, nationalism was turning polar discovery, in essence geographical discovery, into a race. In the near past the northern polar region/southern polar region has been warmer/colder than at present, respectively. The peripheral type has lesions only outside the posterior polar area. There were many spectacles during the nineteenth century, feeding a public appetite for the latest thrilling news, whether polar or not. Also, these are polar cases, as every voter in each figure is either centrist or extremist. An open subsurface hydrothemal system will be easier to detect, mostly by vapor escape, but will lose molecules irreversibly to the polar cold trap. See all examples of polar These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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