quaternary

英 [kwəˈtɜːnəri]

美 [ˈkwɑtərˌnɛri]

adj.  季; 第四纪的; 四进制的；四元的；四价的
n.  四; 四个一组

计算机

BNC.29261 / COCA.40079

英英释义

noun

• the cardinal number that is the sum of three and one
  Synonym:four4IVtetradquaternquaternionquaternityquartetquadrupletfoursomeLittle Joe

adj

• coming next after the third and just before the fifth in position or time or degree or magnitude
  1. the quaternary period of geologic time extends from the end of the tertiary period to the present
  Synonym:fourth4th
• consisting of or especially arranged in sets of four
  1. quaternate leaves
  2. a quaternary compound
  Synonym:quaternate

双语例句

• Based on the analysis of the late Cenozoic stratigraphy, neotectonic topography and the structures of Quaternary in the region, the present paper studies the neotectonic characteristics of the region systematically.
  通过对晚新生代地层、构造地貌及第四系内褶皱和断层的综合分析，阐述了区内新构造活动特征。
• Results indicated that organic bentonite could be prepared firstly by Na-modification and then by quaternary ammonium treatment.
  研究表明，采用天然钙基膨润土通过钠化提纯、季铵盐有机改性的方法，可以制备出性能优良的有机膨润土。
• In this paper experiments of image segmentation on Quaternary strata are made on RS image by morphologic methods.
  利用数学形态学的方法对遥感影像的第四系地层进行了影像分割实验。
• The silt in the Yellow River Delta mainly belongs to the quaternary deposits.
  黄河三角洲粉土主要为第四纪散河流堆积物。
• Quaternary Geosciences and Human Survival
  第四纪地球科学和人类生存
• Sprinkler section valve Those correspond to Quaternary, Pliocene, Upper Miocene, Lower Miocene and Eocene respectively.
  喷水灭火系统分段阀分别为第四系、上新统、中新统上段、中新统下段及始新统。
• The Quaternary is also characterized by the emergence of the environment.
  第四纪也以人类的出现和人类开始对环境的改造为标志。
• Study on Synthesis and Properties of Multi Quaternary Ammonium Surfactant
  多季铵盐表面活性剂合成与性能研究
• Organic complexes of montmorillonite were prepared by modifying montmorillonite with certain quaternary ammonium.
  对无机膨润土进行了聚胺改性，得到有机复合膨润土。
• Research Progress in Preparation of Chitosan Quaternary Salts and Their Application
  壳聚糖季铵盐的制备与应用研究进展