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
- Research on the Quaternary fine-fraction lithofacies and sedimentation model in Tainan Area, Qaidam Basin
柴达木台南地区第四系细粒沉积岩相与沉积模式研究 - 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。 - 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 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 - These supply a new information for the evolution of the Qinghai-Tibet Plateau lakes, climate change research and the division and correlation of the Quaternary strata.
为青藏高原湖泊演化、气候环境变迁研究及第四纪地层的划分与对比提供了新资料。 - 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。 - 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 - 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。 - 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。