紫外线照射
例句与用法
- Images taken before and after exposure to uv radiation showed ros generation in the skin increased after sunscreen penetration
在紫外线照射之前之后的图像显示，在防晒霜渗透至皮下后，皮肤的有害氧化反应增加了。 - Try to reduce direct sunshine as much as possible , so as to prevent earlier weather - shake or aging of the paint owing to too much ultraviolet irradiation
尽量减少太阳直晒，以免油漆板面经紫外线照射过多提前干裂和老化。 - Ros is naturally produced in the body by exposure to uv rays , leading to skin damage and visible signs of ageing
Ros指人体暴露在紫外线照射下，自然产生的化学反应，及其产生对皮肤的损伤，以及一段时间内（晒伤）明显的症状。 - It threatens to produce a " quiet epidemic " of skin cancer among earth s inhabitants because of greater exposure to the sun s ultraviolet rays
由于暴露在大量的太阳紫外线照射下，一场无声的流行病皮肤癌，已经悄悄地开始威胁人类。 - The scientists mimicked a space environment by freezing the mixture to temperatures close to absolute zero , then exposing it to harsh ultraviolet radiation
科学家模拟太空环境，首先将混合物降温，直到接近绝对零度后，以强烈的紫外线照射混合物。 - Humans acquired dark skin in africa about 1 . 5 million years ago to protect bodies from ultra - violet rays of the sun , which can cause skin cancer
大约150万年以前，非洲人形成了深色皮肤，以此使皮肤免受太阳光紫外线的伤害，因为紫外线照射能引发皮肤癌。 - But three uv filters which are widely used in sunscreens actually generate ros in skin themselves when exposed to ultraviolet radiation - adding to the natural level
但3种被广泛地应用于防晒用品里的滤光剂，实际上在紫外线照射下，产生了ros作用，超出了自然状态下的水平。 - Our anti - bogus silk trademarks are made by a kind of special voile which can change into colours of rad yellow green etc . when come across ultraviolet
防伪丝织商标是用一种特殊纱，织在需要防伪的部位，经紫外线照射后，这些需要防伪的标志和图案可以变成红、黄、绿等各种颜色。 - It illuminates the inner self and teaches emotional awareness and mastery of self , balance , understanding , and the ability to regulate how much emotion to reveal in a certain situation
10克立方厘米。无解理，裂理发育。红宝石在长、短波紫外线照射下发红色及暗红色荧光。 - Large amounts of uv radiation damage the dna in skin cells and can even lead to skin cancer . sunscreen protection should begin during the car trip to the holiday destination
大量的紫外线照射损害皮肤细胞的dna甚至会导致皮肤癌。我们应该从旅行开始到度假目的地进行全程遮光保护。