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
- 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 - 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。 - 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。 - 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 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 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。 - 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。 - 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。 - 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。