英语释义

• the cardinal number that is the sum of three and one

• 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"

片语

quaternary geology[地质] 第四纪地质学

quaternary ammonium compound[有化] 季铵化合物

quaternary treatment四级处理

quaternary space四个一组的空间

Quaternary InternationalQuaternary International is a peer-reviewed scientific journal on Quaternary science published by Elsevier on behalf of the International Union for Quaternary Research.

quaternary ammonium季铵；四级铵

quaternary parasite四重寄生

quaternary system[数] 四进制，四元系统

Quaternary geanticline第四纪地背斜

quaternary period第四纪

Quaternary Geology[地质] 第四纪地质学

quaternary ROM翻译

quaternary structure[生物物理] 四级结构

quaternary ammonium salt[有化] 季铵盐

quaternary gain四进制增益

英汉例句

• therefore, the area is typical to study the environmental change of china , even of the globe since quaternary period, especially since the holocene epoch.

  所以该地区是研究第四纪以来，特别是全新世以来中国及全球环境变化的典型地区。

• we know little of a quaternary compound.

  我们对四元化合物了解得很少。

• the reaction kinetics ofm-phendiol diglycidyl ether with methylacrylic acid in the presence of quaternary ammonium salt catalyst has been studied.

  讨论了用季铵盐催化剂合成甲基丙烯酸间苯二酚二缩甘油酯的合成反应动力学及催化反应动力学。

• review and prospects of quaternary glaciation research in china.

  中国第四纪冰川研究的回顾与展望。

• the preparation methods of quaternary ammonium salt of chitosan at home and abroad, meanwhile were introduced, and heir advantages and shortcomings were compared.

  对目前国内外壳聚糖季铵盐的制备方法加以介绍，并比较了它们的优缺点。

• the most powerful of feedbacks in the arctic is sea ice and snow cover, said miller, the lead author on a paper about past 「arctic amplification」 in the journal quaternary science reviews.

  在北极，反馈最强的莫过于海冰和积雪，米勒说，他是第四纪科学评论杂志中关于过去「北极的放大效应」一文的主要作者。

• the quaternary glaciation started just a few million years ago – and is still going on.

  第四纪始于几百万年以前，并延续到现在。

• position quaternary predicate shape, edit reading, connect roles, and add constraints.

  定位四元谓词形状、编辑读数、连接角色和添加约束。

• 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。

• the cool temperatures of the quaternary may have allowed our brains to become much larger than those of our of hominid ancestors.

  第四纪的凉爽气温或许让我们的大脑比人类远祖的大脑更大。

• synthesis and flocculation performance of a new quaternary ammonium salt of lignin.

  新型木质素季铵盐絮凝剂的合成与絮凝性能。

• the quaternary forms part of the 65m-year cenozoic era, distinguished by the opening of the north atlantic, the rise of the himalayas, and the widespread presence of mammals and flowering plants.

  第四纪是6500万年的新生代(cenozoic)[3]的组成部分，在此时期，一个显着的特点就是北大西洋的诞生和喜马拉雅山的崛起，以及哺乳动物和开花植物的广泛出现。

• geology deals with the now: the 10, 000-year-old holocene epoch, a peculiarly stable and clement part of the quaternary period, a time distinguished by regular shifts into and out of ice ages.

  地质学则研究现在：1万年之久的全新世是第四纪(quaternary)[1]的一部分——第四纪的特点就是冰期间冰期的有规律的交替，而全新世(holocene)[2]则是一个非常稳定和温和的时期。

• based on ttl technique, the designed quaternary schmitt circuit is simulated with pspice and is proved to have the ideal schmitt function.

  基于ttl技术设计的四值施密特电路已用pspice模拟证明了具有理想的施密特电路功能。

• in jackson’s videos, the dance is tertiary, even quaternary (after the song and the story and the filming).

  而杰克逊的片子中舞蹈排第三，甚至排第四（在歌曲、故事、电影之后）。

• to conform with the japanese jis x 4061 standard, you need to set this attribute to on and the strength attribute to the quaternary level.

  为了符合japanesejisx4061标準，需要打开这个属性并将强度属性设置为第四级。

• antibodies respond to the quaternary structure of proteins so their potential to cross-react with an alloantigen is very low.

  抗体对蛋白质的四级结构产生应答，因此它们对同种异型抗原发生交叉反应的能力较弱。