quaternary

听听怎么读

英 [kw?'t?:n?r?]

美 [kw?'t?ner?]

是什么意思

四，四个一组；

adj.

第四组中的组成部分，四进制的；

变形

复数：quaternaries

英英释义

quaternary[ kw?'t?:n?ri ]

n.
- last 2 million years
  同义词：Quaternary periodAge of Man
- the cardinal number that is the sum of three and one
  同义词：four4IVtetradquaternquaternionquaternityquartetquadrupletfoursomeLittle Joe
adj.
- consisting of or especially arranged in sets of four
  "a quaternary compound"
  同义词：quaternate
- 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：fourth4th

学习怎么用

词组短语

quaternary ammonium[石油]季铵；[生物]四级铵

quaternary ammonium salt季铵盐

quaternary period第四纪

quaternary system四进制，四元系统

quaternary geology第四纪地质学

quaternary structure四级结构

quaternary ammonium compound季铵化合物

更多收起词组短语

双语例句

用作形容词(adj.)

The Quaternary sediments are largely undeformed.
第四纪的沉积物大部分未变形。
Industries based on brainwork or knowledge are called the quaternary industry.
以脑力劳动或知识为基础的产业被称为第四产业。

权威例句

Quaternary Ammonium and Tertiary Sulfonium Compounds in Higher Plants
Late-Quaternary Vegetation Dynamics in North America: Scaling from Taxa to Biomes
Standard Tertiary and Quaternary calcareous nannoplankton zonation
Quaternary ligand binding to aromatic residues in the active-site gorge of acetylcholinesterase.
Superconductivity in the quaternary intermetallic compounds LnNi 2 B 2 C
Range shift and adaptive response to Quaternary climate change
MODERN ANALOGS IN QUATERNARY PALEOECOLOGY: Here Today, Gone Yesterday, Gone Tomorrow?
Neotropical seasonally dry forests and quaternary vegetation changes.
Superconductivity in the iron-based F-doped layered quaternary compound Nd[O1 ? x Fx]FeAs
Structural and Electrochemical Characterization of Binary, Ternary, and Quaternary Platinum Alloy Catalysts for Methanol Electro-oxi...

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