ultra voilet

简明释义

紫外线

英英释义

例句

1.Many sunscreens contain ingredients that block ultra violet (紫外线) radiation to protect the skin.

许多防晒霜含有可以阻挡ultra violet（紫外线）辐射的成分，以保护皮肤。

2.Some plants require exposure to ultra violet (紫外线) light for optimal growth.

某些植物需要暴露在ultra violet（紫外线）光下才能达到最佳生长效果。

3.The sun emits a range of light, including ultra violet (紫外线) rays that can cause skin damage.

太阳发出一系列光，包括ultra violet（紫外线）射线，这些射线可能导致皮肤损伤。

4.Certain types of fluorescent lamps emit ultra violet (紫外线) light, which can be harmful in high doses.

某些类型的荧光灯发出ultra violet（紫外线）光，高剂量时可能会有害。

5.In laboratories, scientists use ultra violet (紫外线) light to sterilize equipment and surfaces.

在实验室中，科学家使用ultra violet（紫外线）光来消毒设备和表面。

作文

The world around us is filled with various forms of light, each playing a crucial role in our everyday lives. One of the most fascinating aspects of light is the electromagnetic spectrum, which encompasses a range of wavelengths, including visible light, infrared radiation, and ultraviolet (紫外线) light. While we often take visible light for granted, it is important to understand the significance of ultraviolet (紫外线) light and its impact on both our health and the environment.Ultraviolet (紫外线) light is a type of electromagnetic radiation that comes from the sun and artificial sources such as tanning beds. It has shorter wavelengths than visible light, which means it is invisible to the naked eye. Despite being unseen, ultraviolet (紫外线) light plays a vital role in the natural world. For instance, it helps our bodies produce vitamin D, an essential nutrient that promotes bone health and supports the immune system. However, excessive exposure to ultraviolet (紫外线) light can lead to harmful effects, including skin damage, premature aging, and an increased risk of skin cancer.Understanding the dual nature of ultraviolet (紫外线) light is crucial. On one hand, it is beneficial for our health, but on the other hand, it poses serious risks. This paradox highlights the importance of moderation and protection. For example, when spending time outdoors, it is essential to wear sunscreen to shield our skin from harmful ultraviolet (紫外线) rays. Sunscreen acts as a barrier, absorbing or reflecting the ultraviolet (紫外线) light before it can penetrate the skin and cause damage.Moreover, ultraviolet (紫外线) light has applications beyond human health. In the field of science, it is used in various technologies, including sterilization processes and fluorescent lighting. For instance, ultraviolet (紫外线) light is effective in killing bacteria and viruses, making it a valuable tool in healthcare settings. Additionally, it is utilized in forensic science to detect substances that are invisible under normal lighting conditions.As we become more aware of the effects of ultraviolet (紫外线) light, it is imperative to educate ourselves and others about its significance. Schools and communities should promote awareness campaigns that inform people about the benefits and dangers associated with ultraviolet (紫外线) exposure. By understanding how to protect ourselves while enjoying the advantages of ultraviolet (紫外线) light, we can lead healthier lives.In conclusion, ultraviolet (紫外线) light is a powerful force in our environment, offering both benefits and risks. It is essential to strike a balance between enjoying the positive aspects of ultraviolet (紫外线) light and protecting ourselves from its harmful effects. Through education and awareness, we can harness the advantages of ultraviolet (紫外线) light while minimizing the risks, ensuring a healthier future for ourselves and the generations to come.

我们周围的世界充满了各种光的形式，每种形式在我们的日常生活中都发挥着至关重要的作用。光的一个最迷人的方面是电磁波谱，它包含一系列波长，包括可见光、红外辐射和紫外线（ultraviolet）光。虽然我们经常把可见光视为理所当然，但理解紫外线（ultraviolet）光的重要性及其对我们健康和环境的影响是很重要的。紫外线（ultraviolet）光是一种来自太阳和人工来源（如日光浴床）的电磁辐射类型。它的波长比可见光短，这意味着它对肉眼不可见。尽管看不见，紫外线（ultraviolet）光在自然界中扮演着至关重要的角色。例如，它帮助我们的身体产生维生素D，这是一种促进骨骼健康和支持免疫系统的必需营养素。然而，过度暴露于紫外线（ultraviolet）光会导致有害的影响，包括皮肤损伤、过早衰老和增加皮肤癌的风险。理解紫外线（ultraviolet）光的双重性质至关重要。一方面，它对我们的健康有益，但另一方面，它也带来了严重的风险。这一悖论突显了适度和保护的重要性。例如，在户外活动时，涂抹防晒霜以保护我们的皮肤免受有害紫外线（ultraviolet）射线的侵害是至关重要的。防晒霜作为屏障，吸收或反射紫外线（ultraviolet）光，防止其渗透皮肤并造成损害。此外，紫外线（ultraviolet）光在超越人类健康的领域中也有应用。在科学领域，它被用于各种技术，包括灭菌过程和荧光照明。例如，紫外线（ultraviolet）光在杀死细菌和病毒方面有效，使其成为医疗保健环境中的宝贵工具。此外，它还被用于法医科学，以检测在正常光照条件下不可见的物质。随着我们对紫外线（ultraviolet）光影响的认识提高，教育自己和他人了解其重要性变得至关重要。学校和社区应促进意识宣传活动，告知人们与紫外线（ultraviolet）暴露相关的好处和危险。通过理解如何在享受紫外线（ultraviolet）光的优势的同时保护自己，我们可以过上更健康的生活。总之，紫外线（ultraviolet）光是我们环境中一种强大的力量，提供了好处和风险。重要的是在享受紫外线（ultraviolet）光的积极方面和保护自己免受其有害影响之间找到平衡。通过教育和意识提高，我们可以利用紫外线（ultraviolet）光的优势，同时将风险降到最低，为我们自己和未来几代人确保一个更健康的未来。