- adj.
1.四个一组的；由四部份组成的；第四的。
2.【化学】四元的；四价的；季的；【数学】四进制的。
3.〔Q-〕【地质学；地理学】第四纪[系]的。n.
1.四；四个一组的东西；第四组组成部分。
2.〔Q-〕【地质学；地理学】第四纪。
3.【数学】四进制。
短语和例子
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quaternary中文什么意思
例句与用法
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- The quaternary sediments are largely undeformed .
第四纪的沉积物大部分未变形。 - Cationics are usually quaternary ammomium salts .
阳离子表面活性剂通常为季铵盐类。 - Non - aqueous titrimetric analysis of quaternary ammonium salt n
263的非水滴定分析 - Optimal quaternary self - orthogonal codes of dimension three
4上的3维最优自正交码 - Thermoelectric properties of quaternary ag - bi - sb - te alloys
四元合金的热电性能
英文释义
名词- the cardinal number that is the sum of three and one
同义词：four, 4, IV, tetrad, quatern, quaternion, quaternity, quartet, quadruplet, foursome, Little Joe
- coming next after the third and just before the fifth in position or time or degree or magnitude; "the quaternary period of geologic time extends from the end of the tertiary period to the present"
同义词：fourth, 4th - consisting of or especially arranged in sets of four; "quaternate leaves"; "a quaternary compound"
同义词：quaternate
百科释义
The Quaternary Period is the most recent of the three periods of the Cenozoic Era in the geologic time scale of the ICS. It follows the Neogene Period and spans from 2.
详细百科解释