surface tension

简明释义

表面张力

英英释义

例句

1.When you add soap to water, it reduces the surface tension, making it easier for the water to spread.

当你在水中加入肥皂时，它会降低表面张力，使水更容易扩散。

2.Some insects, like water striders, can walk on water thanks to surface tension.

一些昆虫，比如水黾，能够在水面上行走，这要归功于表面张力。

3.In a glass of water, you can see that the water forms a slight dome shape due to surface tension.

在一杯水中，你可以看到水由于表面张力形成了轻微的圆顶形状。

4.The small water droplets on a leaf are held together by surface tension, which is the property of liquid that allows it to resist external force.

叶子上的小水滴通过表面张力保持在一起，这是液体抵抗外力的特性。

5.The surface tension of mercury is much higher than that of water, allowing it to form beads.

汞的表面张力远高于水，使其能够形成水珠。

作文

Surface tension is a fascinating physical phenomenon that can be observed in our daily lives, yet it often goes unnoticed. It is defined as the elastic tendency of a fluid surface that makes it acquire the least surface area possible. This property arises from the cohesive forces between liquid molecules. For instance, when you look at a water droplet resting on a leaf, you can see how it maintains its shape instead of spreading out. This is due to the surface tension (表面张力) of the water, which pulls the molecules at the surface closer together, creating a sort of 'skin' that resists external force.One of the most common examples of surface tension (表面张力) is seen when small insects, such as water striders, walk on the surface of a pond without sinking. Their legs do not break through the water's surface because the surface tension (表面张力) is strong enough to support their weight. This incredible ability is due to the fact that the insect's legs are structured to distribute their weight over a larger area, minimizing the pressure exerted on the water.Another interesting aspect of surface tension (表面张力) is its role in various scientific and industrial applications. For example, in the field of medicine, surface tension (表面张力) plays a crucial role in the function of alveoli in the lungs. The alveoli are tiny air sacs where gas exchange occurs. A substance called surfactant reduces the surface tension (表面张力) of the fluid lining these sacs, preventing them from collapsing and allowing for efficient breathing. Without this reduction in surface tension (表面张力), the lungs would struggle to inflate, leading to severe respiratory issues.In addition to biology, surface tension (表面张力) is also significant in the world of cleaning products. Many detergents are designed to lower the surface tension (表面张力) of water, allowing it to spread and penetrate more easily into dirt and grease. This is why adding soap to water makes it more effective for washing dishes or clothes; the reduced surface tension (表面张力) allows the water to interact with and remove stubborn stains more effectively.Furthermore, understanding surface tension (表面张力) can lead to innovations in technology. For example, researchers are exploring ways to manipulate surface tension (表面张力) to create more efficient cooling systems or even to develop new materials that can repel water. This has potential applications in everything from electronics to clothing, making them more resistant to moisture and improving their overall performance.In conclusion, surface tension (表面张力) is a vital concept that affects many aspects of our lives, from nature to technology. By recognizing its importance, we can better appreciate the intricate interactions that occur at the molecular level and how they influence the world around us. Whether it is the delicate balance that allows insects to walk on water or the innovative uses in medicine and industry, surface tension (表面张力) is a remarkable phenomenon that showcases the beauty of science in everyday life.

表面张力是一个引人入胜的物理现象，我们在日常生活中可以观察到，但往往会被忽视。它被定义为液体表面的弹性倾向，使其尽可能地获得最小的表面积。这一特性源于液体分子之间的内聚力。例如，当你看到一个水滴停在叶子上时，你可以看到它是如何保持形状而不是扩散开来的。这是由于水的表面张力（surface tension），它使得表面上的分子彼此拉得更近，形成一种抵抗外力的“皮肤”。表面张力（surface tension）的一个常见例子是小昆虫，如水黾，在池塘表面行走而不下沉。它们的腿不会破坏水的表面，因为表面张力（surface tension）足够强大，可以支撑它们的重量。这种令人难以置信的能力源于昆虫的腿结构能够将它们的重量分布在更大的面积上，从而最小化施加在水上的压力。表面张力（surface tension）的另一个有趣方面是它在各种科学和工业应用中的作用。例如，在医学领域，表面张力（surface tension）在肺泡的功能中起着至关重要的作用。肺泡是进行气体交换的微小气囊。一种称为表面活性剂的物质降低了这些气囊内衬液体的表面张力（surface tension），防止它们塌陷，并允许有效的呼吸。如果没有这种对表面张力（surface tension）的降低，肺部将难以膨胀，导致严重的呼吸问题。除了生物学，表面张力（surface tension）在清洁产品的世界中也很重要。许多洗涤剂的设计旨在降低水的表面张力（surface tension），使其更容易扩散并渗透到污垢和油脂中。这就是为什么在水中加入肥皂使其在洗碗或洗衣服时更有效的原因；降低的表面张力（surface tension）使水能够与顽固污渍更有效地相互作用并去除它们。此外，理解表面张力（surface tension）可以推动技术创新。例如，研究人员正在探索操纵表面张力（surface tension）的方法，以创建更高效的冷却系统，甚至开发出能够排斥水的新材料。这在从电子产品到服装等各个领域都有潜在应用，使它们对湿气更具抵抗力，提高整体性能。总之，表面张力（surface tension）是一个重要的概念，影响着我们生活的许多方面，从自然到技术。通过认识到它的重要性，我们可以更好地欣赏分子层面上发生的微妙相互作用，以及它们如何影响我们周围的世界。无论是允许昆虫在水面上行走的微妙平衡，还是在医学和工业中的创新应用，表面张力（surface tension）都是一个非凡的现象，展示了日常生活中科学的美丽。