quaternary

简明释义

英[kwəˈtɜːn(ə)rɪ]美[kwəˈtɜːrnəri]

adj. [数] 四进制的；四个一组的

n. 四；四个一组

复 数 q u a t e r n a r i e s

英英释义

单词用法

同义词

反义词

例句

1.The activity of igneous rocks mainly concentrates in Neogene and Quaternary.

火成岩活动主要集中在晚第三纪和第四纪。

2.Evolution of desert is one of important aspect of Quaternary paleoclimate and paleoenvironment research.

沙漠形成演化是第四纪古气候、古环境研究的重要内容之一。

3.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。

4.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。

5.A great many proteins, especially enzymes, are oligomeric and consequently possess quaternary structure.

很多蛋白质尤其是酶类，是低聚物，因此拥有四级结构。

6.The formation and evolution of Quaternary natural environment is the key link of Quaternary geological study.

第四纪自然环境的形成和演变是第四纪地质史研究的中心环节。

7."It is a long time coming and marks a turning of the tide in how we approach these extinctions of the Late Quaternary," she says.

她指出：“这标志着在接下来的很长一段时间内，我们将转向如何处理晚第四纪的灭绝。”

8.Design of quaternary Schmitt circuits.

四值施密特电路设计。

9.The quaternary period is known for the Ice Ages and significant geological changes.

第四纪时期以冰河时代和显著的地质变化而闻名。

10.In geology, the quaternary refers to the most recent period of Earth's history.

在地质学中，第四纪指的是地球历史上最近的时期。

11.Many cities are built on quaternary deposits, which are rich in resources.

许多城市建立在第四纪沉积物上，这些沉积物富含资源。

12.The quaternary structure of proteins is essential for their function.

四级结构对于蛋白质的功能至关重要。

13.The quaternary system of classification helps in organizing species based on evolutionary relationships.

四级分类系统有助于根据进化关系对物种进行组织。

作文

The term quaternary refers to the fourth level or order in a sequence. In various fields, such as geology, biology, and mathematics, it plays a crucial role in categorizing and understanding complex systems. For example, in geology, the quaternary period is the most recent geological time frame, spanning from approximately 2.6 million years ago to the present. This era is characterized by significant climatic changes, the development of modern flora and fauna, and the emergence of human civilization. Understanding the quaternary period is essential for geologists as it provides insights into Earth's history and the processes that have shaped our planet.In biology, the concept of quaternary structure is vital for comprehending protein formation. Proteins are made up of amino acids that fold into specific shapes, and the quaternary structure refers to the arrangement of multiple protein subunits into a larger functional complex. This level of structure is crucial because it determines the protein's functionality and interactions with other molecules. For instance, hemoglobin, which carries oxygen in the blood, has a quaternary structure made up of four subunits. Understanding this structure helps scientists develop drugs and therapies that can target specific proteins in the body.In mathematics, the term quaternary can refer to systems or equations that involve four variables or dimensions. For example, in algebra, a quaternary polynomial is a polynomial of degree four, which can be used to model various phenomena in physics, engineering, and economics. The ability to work with quaternary equations expands the scope of mathematical analysis and problem-solving, providing more comprehensive tools for researchers and practitioners.Moreover, the quaternary system is also relevant in the context of education. In many countries, the education system is divided into primary, secondary, tertiary, and quaternary levels. The quaternary level often includes adult education, vocational training, and lifelong learning opportunities. This level of education is essential for individuals seeking to enhance their skills, adapt to changing job markets, and pursue personal interests. By promoting quaternary education, societies can foster a culture of continuous learning and development, which is crucial in today's fast-paced world.In conclusion, the concept of quaternary permeates various disciplines, offering a framework for understanding complex systems and relationships. Whether in geology, biology, mathematics, or education, the quaternary level signifies an important aspect of organization and categorization. As we continue to explore and learn about our world, recognizing the significance of the quaternary dimension will enhance our comprehension and appreciation of the intricate systems that surround us.

术语quaternary指的是序列中的第四个级别或顺序。在地质学、生物学和数学等多个领域，它在分类和理解复杂系统方面发挥着至关重要的作用。例如，在地质学中，quaternary时期是最近的地质时间框架，大约从260万年前延续到现在。这个时代的特征是显著的气候变化、现代植物和动物的演变以及人类文明的出现。了解quaternary时期对地质学家来说至关重要，因为它提供了关于地球历史和塑造我们星球的过程的见解。在生物学中，quaternary结构的概念对于理解蛋白质的形成至关重要。蛋白质由氨基酸构成，这些氨基酸折叠成特定的形状，而quaternary结构则指多个蛋白质亚单位排列成一个更大的功能复合体。这一结构水平至关重要，因为它决定了蛋白质的功能性及其与其他分子的相互作用。例如，血红蛋白负责在血液中运输氧气，其quaternary结构由四个亚单位组成。理解这一结构有助于科学家开发能够针对体内特定蛋白质的药物和疗法。在数学中，术语quaternary可以指涉及四个变量或维度的系统或方程。例如，在代数中，quaternary多项式是一个四次的多项式，可以用于建模物理、工程和经济学中的各种现象。处理quaternary方程的能力扩展了数学分析和问题解决的范围，为研究人员和从业者提供了更全面的工具。此外，quaternary系统在教育背景中也很相关。在许多国家，教育系统分为初等教育、中等教育、高等教育和quaternary教育。quaternary教育通常包括成人教育、职业培训和终身学习机会。这一教育水平对那些寻求提高技能、适应不断变化的就业市场和追求个人兴趣的人至关重要。通过促进quaternary教育，社会可以培养持续学习和发展的文化，这在当今快节奏的世界中至关重要。总之，quaternary的概念渗透到各个学科，提供了理解复杂系统和关系的框架。无论是在地质学、生物学、数学还是教育中，quaternary水平都代表了组织和分类的重要方面。随着我们继续探索和学习我们的世界，认识到quaternary维度的重要性将增强我们对周围复杂系统的理解和欣赏。