surface tension

简明释义

表面张力

英英释义

例句

1.The surface tension 表面张力 of mercury is much higher than that of water.

汞的表面张力远高于水的。

2.A needle can float on water if placed gently, thanks to the surface tension 表面张力.

如果轻轻放置，针可以漂浮在水面上，这要归功于表面张力。

3.In biology, surface tension 表面张力 plays a crucial role in the structure of cell membranes.

在生物学中，表面张力在细胞膜的结构中起着至关重要的作用。

4.The small insects can walk on water due to the high surface tension 表面张力 of the water.

小昆虫能够在水面上行走，得益于水的高表面张力。

5.When you add soap to water, it reduces the surface tension 表面张力, allowing bubbles to form.

当你向水中添加肥皂时，它会降低表面张力，使气泡得以形成。

作文

Surface tension is a fundamental concept in physics and chemistry that describes the elastic-like force existing at the surface of a liquid. This phenomenon occurs due to the cohesive forces between liquid molecules, which are stronger at the surface because they are not surrounded by similar molecules on all sides. As a result, the surface molecules are pulled inward, creating a 'skin' on the liquid's surface. Understanding surface tension (表面张力) is essential for various applications, from everyday occurrences to advanced scientific research.One of the most common examples of surface tension (表面张力) can be observed when water droplets form on a car's surface after it rains. Instead of spreading out, the water beads up, demonstrating the strong cohesive forces at work. This behavior is not limited to water; other liquids exhibit surface tension (表面张力) as well, although the degree varies significantly among different substances. For instance, mercury has a much higher surface tension (表面张力) compared to water, which allows it to form distinct droplets and even enables small objects, like a needle, to float on its surface despite being denser than mercury.In biology, surface tension (表面张力) plays a critical role in the functioning of living organisms. For example, in the lungs, surfactants are substances that reduce surface tension (表面张力) in the alveoli, the tiny air sacs where gas exchange occurs. If the surface tension (表面张力) is too high, the alveoli could collapse, making it difficult for the lungs to expand and contract efficiently. Therefore, surfactants are vital for maintaining proper lung function and ensuring that we can breathe effectively.Moreover, surface tension (表面张力) affects the behavior of liquids in various contexts, including engineering and environmental science. For instance, in the design of inkjet printers, engineers must consider surface tension (表面张力) to ensure that ink droplets are ejected properly and spread evenly on paper. Similarly, in nature, surface tension (表面张力) influences the shape of raindrops and the ability of certain insects, like water striders, to walk on water without sinking.The study of surface tension (表面张力) also extends to the field of materials science. Researchers are constantly exploring ways to manipulate surface tension (表面张力) to create new materials with unique properties. For example, altering the surface tension (表面张力) of a liquid can lead to the development of coatings that resist water or oil, which has significant implications for industries ranging from automotive to textiles.In conclusion, surface tension (表面张力) is a crucial phenomenon that impacts many aspects of our lives and the natural world. Its effects can be observed in simple daily activities, such as watching raindrops on a window, as well as in complex biological processes and innovative technologies. By understanding surface tension (表面张力), we gain insight into the interactions of liquids and their environments, paving the way for advancements in science and technology that can improve our quality of life.