Melanoma usually occurs in the skin and is caused by exposure to ultraviolet radiation(such as sunlight).
其他因素包括暴露于紫外线辐射,添加剂也可用来防止。
Other factors include exposure to ultraviolet radiation, which additives are also available to protect against.
没有证据表明暴露于任何类型日光浴浴床的紫外线比暴露于太阳紫外线的危害要小。
There is no evidence to suggest that UV exposure from any type of sunbed is less harmful than UV exposure from the sun.
发光颜色取决于所用半导体材料的化学成分,可能接近于紫外线、可见光线或红外线。
The colour of the emitted light depends on the chemical composition of the semi-conducting material used and can be close to ultraviolet, visible or infrared.
具体而言,将向每位受试者解释如何避免过度暴露于紫外线并且将要求适当防晒。
Specifically, each subject will be explained how to avoid excessive exposure to ultraviolet rays and the appropriate sun protection will be indicated.
而预防皮肤癌的最有效方法,则是避免过度暴露于紫外线辐射之下。
The best way to prevent skin cancer is to avoid exposure to ultraviolet radiation.
这一重要的信息来源有助于你安排户外活动,采取预防过度暴露于阳光紫外线的方式。
This important source of information will help you arrange outdoor activities and take precautions against the sun's ultraviolet rays….
届时,将禁止销售或分销含有氧苯并酮和辛诺酮等有助于过滤紫外线的非处方药物。
At that point, the sale or distribution of over-the-counter sunscreens containing oxybenzone and octinoxate, which help filter UV rays, will be prohibited.
准分子激光的ArF(193nm)及F2(157nm)相当于真空紫外线光。
ArF(193 nm) and F2(157 nm) excimer lasers fall under the category of vacuum ultra-violet light.
虽然II型及以上类型的皮肤可晒黑,但在过度暴露于紫外线之后仍会损伤皮肤。
While skin type II and higher can tan, skin damage can still occur following excessive exposure to UV.
太阳光中的红外线对皮肤的损害作用不同于紫外线。
The infrared rays in sunlight have different effects on skin than ultraviolet rays.
外源性自由基(致环境的那些)是主要在暴露于紫外线阳光、吸烟或污染产生的。
Exogenous free radicals(those that are induced by the environment) are produced mainly during exposure to UV sunlight, smoking or pollution.
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