permeation

简明释义

英[ˌpɜːmiˈeɪʃn]美[ˌpɜːrmiˈeɪʃn]

n. 渗透；（化学）渗透作用，渗透作用

英英释义

单词用法

同义词

反义词

例句

1.Using flocculation as pretreatment can cut down membrane pollution and increase permeation flux.

同时，絮凝处理能减轻膜污染，增大膜的渗透通量。

2.The permeation flux can be recovered by washing with acid, surfactant and base as well as appropriate pulse washing.

采用酸、表面活性剂、碱并配以合适的脉冲清洗，有效恢复膜的渗透通量。

3.A gel permeation chromatography clean up method was introduced.

样本前处理采取凝胶色谱柱净化方法。

4.The concrete permeation mechanism and electrical indication of permeability are introduced.

介绍了混凝土渗透机理及混凝土渗透性电学评价。

5.The influence of feed concentration and operation temperature on membrane permeation is special.

溶液浓度和操作温度对膜渗透性的影响非常特殊。

6.Actually, the use of foreign teachers resources means intercultural permeation.

外教资源的利用实际上是跨文化渗透。

7.Permeation process and dehydration process of concrete were studied by use of impedance spectroscopy.

用交流阻抗方法研究了混凝土渗水过程和失水过程的机理和速率。

8.The permeation of water through the soil is essential for plant growth.

水通过土壤的渗透对植物生长至关重要。

9.Scientists study the permeation of gases in various materials to improve insulation.

科学家研究气体在各种材料中的渗透以改善绝缘性能。

10.The permeation of light in the atmosphere affects climate conditions.

光在大气中的渗透影响气候条件。

11.In this experiment, we measured the permeation rate of the membrane.

在这个实验中，我们测量了膜的渗透速率。

12.The permeation of pollutants into groundwater is a major environmental concern.

污染物渗入地下水的渗透是一个主要的环境问题。

作文

In the world of science and technology, the concept of permeation refers to the process by which a substance passes through a barrier or medium. This phenomenon is not only significant in chemistry but also has implications in various fields such as biology, engineering, and environmental science. Understanding permeation can help us appreciate how materials interact with one another and how substances move through different environments. For instance, in biology, permeation is crucial for the functioning of cell membranes. The selective permeability of these membranes allows essential nutrients to enter the cell while keeping harmful substances out. This process is vital for maintaining homeostasis within living organisms. Without the proper permeation of ions and molecules, cells would not be able to perform their functions effectively, leading to detrimental effects on the organism's health. In the field of engineering, permeation plays a significant role in material science. Engineers must consider how gases and liquids will move through materials when designing products. For example, in the construction of buildings, understanding the permeation of water vapor through walls is essential to prevent moisture buildup that could lead to mold growth. Similarly, in the development of packaging materials, manufacturers need to ensure that the permeation of oxygen and other gases is minimized to prolong the shelf life of food products. Moreover, permeation is a critical factor in environmental science, particularly in the study of soil and groundwater contamination. When pollutants enter the soil, their permeation through the ground can lead to the contamination of aquifers. Understanding how different substances permeate through various types of soil helps scientists develop effective strategies for remediation and pollution control. The concept of permeation is not limited to physical substances. It can also apply metaphorically to ideas and cultural influences. For instance, the permeation of technology into our daily lives has transformed the way we communicate, work, and interact with one another. Social media platforms have allowed ideas to spread rapidly across the globe, leading to a new era of connectivity and information sharing. This permeation of technology has both positive and negative consequences, influencing everything from personal relationships to political movements. In conclusion, the term permeation encompasses a wide range of applications and meanings across different fields. Whether discussing the movement of molecules through cell membranes, the flow of fluids through materials, or the spread of ideas through society, permeation is a fundamental concept that shapes our understanding of the world. By studying permeation, we can gain insights into the interactions and processes that govern both the physical and abstract realms of our existence.

在科学和技术的世界中，渗透这一概念指的是物质通过障碍物或介质的过程。这一现象不仅在化学中具有重要意义，而且在生物学、工程学和环境科学等多个领域也有影响。理解渗透可以帮助我们欣赏材料之间的相互作用以及物质如何在不同环境中移动。 例如，在生物学中，渗透对细胞膜的功能至关重要。这些膜的选择性通透性允许必需的营养物质进入细胞，同时阻止有害物质的进入。这一过程对于维持生物体内的稳态至关重要。如果离子和分子的适当渗透没有发生，细胞将无法有效地执行其功能，从而对生物体的健康造成不利影响。 在工程领域，渗透在材料科学中发挥着重要作用。工程师在设计产品时必须考虑气体和液体如何在材料中移动。例如，在建筑物的建设中，了解水蒸气通过墙壁的渗透是防止潮湿积聚导致霉菌生长的关键。同样，在包装材料的开发中，制造商需要确保渗透氧气和其他气体的程度最小化，以延长食品产品的保质期。 此外，渗透在环境科学中也是一个关键因素，特别是在土壤和地下水污染研究中。当污染物进入土壤时，它们通过土壤的渗透可能导致含水层的污染。理解不同物质如何通过各种类型的土壤进行渗透有助于科学家制定有效的修复和污染控制策略。 渗透这一概念不仅限于物理物质。它也可以隐喻地应用于思想和文化影响。例如，技术在我们日常生活中的渗透已经改变了我们沟通、工作和相互交流的方式。社交媒体平台使得思想能够迅速传播到全球，导致了一个新的连接和信息共享的时代。这种技术的渗透既带来了积极的后果，也带来了消极的影响，影响着个人关系和政治运动。 总之，渗透这一术语在不同领域涵盖了广泛的应用和含义。无论是在讨论分子通过细胞膜的运动、流体通过材料的流动，还是社会中思想的传播，渗透都是一个基本概念，塑造了我们对世界的理解。通过研究渗透，我们可以深入了解支配我们存在的物理和抽象领域的相互作用和过程。