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
BNC.29261 / COCA.40079
英英释义
noun
- the cardinal number that is the sum of three and one
adj
- 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
- consisting of or especially arranged in sets of four
- quaternate leaves
- a quaternary compound
双语例句
- 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 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。 - The quaternary period of geologic time extends from the end of the tertiary period to the present.
地质时期中的第四纪是从第三纪一直到现在。 - 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。 - 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。 - The orebody occurred below Quaternary, mineralization is closely related to tectonic activity and alteration.
矿体赋存于第四系之下，矿化与构造活动及蚀变密切相关。 - 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 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。 - 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。 - 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。