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。
• The classification, naming and field description are introduced of the Tertiary and Quaternary rocks from monitoring shaft hole.
  介绍了井简检查孔第三、四系岩土的分类、定名和野外描述。
• 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。
• Progress and problems of Quaternary glaciation and loess study in the midwestern United States
  美国中西部第四纪冰川与黄土研究的进展和问题
• Several polyoxyethylene type quaternary ammonium salt cationic surfactants were selected to investigate their interaction with acid dyes and influence on the dyeing properties.
  摘要选择了几种聚氧乙烯型季铵盐阳离子表面活性剂，探讨了这些表面活性剂与酸性染料的相互作用以及对染料染色性能的影响。
• 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
• The equilibrium phase diagram and the density-composition diagram of the quaternary system were plotted using experimental data.
  依据实验测定的平衡溶解度数据及对应的平衡固相，绘制了该四元体系的平衡相图及其密度-组成图。
• At the same time, the standard Quaternary stratigraphic system of the North China Plain had been established on the basis of previous study.
  与此同时，结合前人的研究成果，建立了华北平原第四纪地层的标准模式地层层系。
• The results show that the quaternary ammonium cationic group of the modified products can better treat perchlorate in water.
  结果表明，改性产物表面的季铵阳离子基团能较好地吸附废水中的高氯酸根；
• The study of the glacial interglacial paleoproductivity evolution during late Quaternary in the bay of Bengal
  孟加拉湾晚第四纪冰期和间冰期古生产力演变研究