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

• Active Characteristics Study of Major Faults in the Subei Region in the Late Quaternary
  肃北地区主要断裂晚第四纪活动特征研究
• The Lower Liaohe River Plain, in Panjin city Liaoning province, has plenty of Quaternary brine resources, with the huge exploitation potential.
  辽宁省盘锦市辖区内的下辽河平原储藏了丰富的第四纪卤水资源，开采潜力巨大，有必要对其进行特征分析和资源评价。
• 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
• 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。
• 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。
• An antistatic agent of polyacrylamide quaternary ammonium compound was designed and synthesized.
  设计合成了聚丙烯酰胺季铵盐类的抗静电剂。
• Quaternary sector of the economy: Involves the research and development needed to produce products from natural resources.
  第四纪的经济部门：涉及的研究和发展生产所需的自然资源。
• Four new types of organic siloxane surfactants with quaternary ammonium group have been obtained.
  通过多步骤合成了四种含有季铵基的有机硅表面活性剂。
• 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。
• Based on the binary mono-stable flip-flops, this paper proposes the design of quaternary mono-stable flip-flops.
  在二值单稳态触发器设计的基础上，提出了四值单稳态触发器的设计方案。