ultraviolet rays

简明释义

紫外线

英英释义

例句

1.Many tanning beds use artificial ultraviolet rays (紫外线) to achieve a bronzed look.

许多日光浴床使用人工紫外线（ultraviolet rays）来获得古铜色的外观。

2.Excessive exposure to ultraviolet rays (紫外线) can lead to skin cancer.

过度暴露于紫外线（ultraviolet rays）下可能导致皮肤癌。

3.Photographers often use filters to reduce the impact of ultraviolet rays (紫外线) on their images.

摄影师通常使用滤镜来减少紫外线（ultraviolet rays）对照片的影响。

4.Wearing sunscreen can help protect your skin from ultraviolet rays (紫外线) that can cause sunburn.

涂抹防晒霜可以帮助保护你的皮肤免受紫外线（ultraviolet rays）造成的晒伤。

5.Some insects are attracted to ultraviolet rays (紫外线) emitted by certain light bulbs.

某些昆虫被某些灯泡发出的紫外线（ultraviolet rays）吸引。

作文

Ultraviolet rays, or 紫外线, are a type of electromagnetic radiation that comes primarily from the sun. They have shorter wavelengths than visible light, which allows them to carry more energy. While these rays can be beneficial in small doses, such as aiding in the production of vitamin D in our bodies, excessive exposure can lead to harmful effects. Understanding the nature of 紫外线 is essential for protecting our health and well-being.In our daily lives, we are constantly exposed to 紫外线. Whether we are enjoying a sunny day at the beach or simply walking outside, these rays are present. The sun emits three types of 紫外线: UVA, UVB, and UVC. UVA rays are the most prevalent and can penetrate deep into the skin, leading to premature aging and wrinkles. UVB rays, on the other hand, are responsible for causing sunburn and are directly linked to skin cancer. UVC rays are the most dangerous but are mostly absorbed by the Earth's atmosphere and do not reach the surface.The impact of 紫外线 on our skin cannot be understated. Overexposure can lead to various skin problems, including sunburn, skin aging, and even skin cancer. It is crucial to take protective measures when spending time outdoors. Wearing sunscreen with a high SPF, seeking shade during peak hours, and wearing protective clothing can significantly reduce the harmful effects of 紫外线. Additionally, sunglasses that block 100% of UVA and UVB rays are essential for protecting our eyes from potential damage.Beyond skin health, 紫外线 also affects our immune system. Research has shown that excessive exposure can suppress the immune response, making us more susceptible to infections and diseases. This highlights the importance of moderation when it comes to sun exposure. While some sunlight is necessary for our overall health, too much can have dire consequences.Interestingly, 紫外线 also plays a role in various industries. For instance, it is used in sterilization processes, as it can kill bacteria and viruses. In the medical field, 紫外线 therapy is utilized to treat certain skin conditions like psoriasis and eczema. However, these applications must be handled with care to avoid adverse effects on patients.In conclusion, 紫外线 rays are a double-edged sword; they can provide benefits in moderation but pose significant risks when overexposed. As we continue to enjoy the outdoors, it is vital to be aware of the effects of 紫外线 and take appropriate precautions. By understanding the nature of these rays, we can better protect ourselves and enjoy the sun safely. Remember, while the sun can be a source of joy and vitality, it is essential to respect its power and shield ourselves from its potential dangers.

紫外线是来自太阳的一种电磁辐射，主要有三种类型：UVA、UVB和UVC。UVA射线最普遍，可以深入皮肤，导致早衰和皱纹；UVB射线则直接导致晒伤，并与皮肤癌直接相关；而UVC射线是最危险的，但大部分被地球的大气层吸收，不会到达地面。过度暴露在紫外线下会导致多种皮肤问题，包括晒伤、皮肤老化甚至皮肤癌。因此，在户外活动时采取保护措施至关重要。穿戴高SPF防晒霜、在高峰时段寻求阴凉处以及穿着保护性衣物都能显著减少紫外线的危害。此外，能够阻挡100% UVA和UVB射线的太阳镜对于保护眼睛免受潜在损害也是必不可少的。