quaternary中文什么意思

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.
+更多解释...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
the Pythagorean quaternary 毕达哥拉斯四元数〔即1＋2＋3＋4，结果恰巧是10〕。

• imidazolium quaternary:    咪唑啉季铵盐
• pre-quaternary:    前第四纪
• quaternary adduct:    四元加合物

例句与用法

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1. The quaternary sediments are largely undeformed .
   第四纪的沉积物大部分未变形。
2. Cationics are usually quaternary ammomium salts .
   阳离子表面活性剂通常为季铵盐类。
3. Non - aqueous titrimetric analysis of quaternary ammonium salt n
   263的非水滴定分析
4. Optimal quaternary self - orthogonal codes of dimension three
   4上的3维最优自正交码
5. Thermoelectric properties of quaternary ag - bi - sb - te alloys
   四元合金的热电性能

英文释义

名词

1. 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

形容词

1. 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
2. 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.