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polar axis

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ลองค้นหาคำในรูปแบบอื่นๆ เพื่อให้ได้ผลลัพธ์มากขึ้นหรือน้อยลง: -polar axis-, *polar axis*, polar axi
อังกฤษ-ไทย: ศัพท์บัญญัติราชบัณฑิตยสถาน [เชื่อมโยงจาก royin.go.th แบบอัตโนมัติและผ่านการปรับแก้]
polar axisแกนเชิงขั้ว [คณิตศาสตร์๑๙ ก.ค. ๒๕๔๗]

Chinese-English: CC-CEDICT Dictionary
极轴[jí zhóu, ㄐㄧˊ ㄓㄡˊ, / ] polar axis (x-axis in polar coordinates) [Add to Longdo]

Result from Foreign Dictionaries (1 entries found)

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Polar \Po"lar\, a. [Cf. F. polaire. See {Pole} of the earth.]
     1. Of or pertaining to one of the poles of the earth, or of a
        sphere; situated near, or proceeding from, one of the
        poles; as, polar regions; polar seas; polar winds.
        [1913 Webster]
  
     2. Of or pertaining to the magnetic pole, or to the point to
        which the magnetic needle is directed.
        [1913 Webster]
  
     3. (Geom.) Pertaining to, reckoned from, or having a common
        radiating point; as, polar coordinates.
        [1913 Webster]
  
     {Polar axis}, that axis of an astronomical instrument, as an
        equatorial, which is parallel to the earths axis.
  
     {Polar bear} (Zool.), a large bear ({Ursus maritimus} syn.
        {Thalarctos maritimus}) inhabiting the arctic regions. It
        sometimes measures nearly nine feet in length and weighs
        1,600 pounds. It is partially amphibious, very powerful,
        and the most carnivorous of all the bears. The fur is
        white, tinged with yellow. Called also {White bear}. See
        {Bear}.
  
     {Polar body}, {Polar cell}, or {Polar globule} (Biol.), a
        minute cell which separates by karyokinesis from the ovum
        during its maturation. In the maturation of ordinary ova
        two polar bodies are formed, but in parthogenetic ova only
        one. The first polar body formed is usually larger than
        the second one, and often divides into two after its
        separation from the ovum. Each of the polar bodies removes
        maternal chromatin from the ovum to make room for the
        chromatin of the fertilizing spermatozoon; but their
        functions are not fully understood.
  
     {Polar circles} (Astron. & Geog.), two circles, each at a
        distance from a pole of the earth equal to the obliquity
        of the ecliptic, or about 23[deg] 28', the northern called
        the arctic circle, and the southern the antarctic circle.
        
  
     {Polar clock}, a tube, containing a polarizing apparatus,
        turning on an axis parallel to that of the earth, and
        indicating the hour of the day on an hour circle, by being
        turned toward the plane of maximum polarization of the
        light of the sky, which is always 90[deg] from the sun.
  
     {Polar coordinates}. See under 3d {Coordinate}.
  
     {Polar dial}, a dial whose plane is parallel to a great
        circle passing through the poles of the earth. --Math.
        Dict.
  
     {Polar distance}, the angular distance of any point on a
        sphere from one of its poles, particularly of a heavenly
        body from the north pole of the heavens.
  
     {Polar equation of a line} or {Polar equation of a surface},
        an equation which expresses the relation between the polar
        coordinates of every point of the line or surface.
  
     {Polar forces} (Physics), forces that are developed and act
        in pairs, with opposite tendencies or properties in the
        two elements, as magnetism, electricity, etc.
  
     {Polar hare} (Zool.), a large hare of Arctic America ({Lepus
        arcticus}), which turns pure white in winter. It is
        probably a variety of the common European hare ({Lepus
        timidus}).
  
     {Polar lights}, the aurora borealis or australis.
  
     {Polar opposition}, or {Polaric opposition} or {Polar
     contrast} or {Polaric contrast} (Logic), an opposition or
        contrast made by the existence of two opposite conceptions
        which are the extremes in a species, as white and black in
        colors; hence, as great an opposition or contrast as
        possible.
  
     {Polar projection}. See under {Projection}.
  
     {Polar spherical triangle} (Spherics), a spherical triangle
        whose three angular points are poles of the sides of a
        given triangle. See 4th {Pole}, 2.
  
     {Polar whale} (Zool.), the right whale, or bowhead. See
        {Whale}.
        [1913 Webster]

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