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- ultraviolet rays detector 紫外线测定仪
- Ultraviolet rays can penetrate through clouds. 紫外线可以穿透云层。
- What are infrared and ultraviolet rays? 什么是红外线和紫外线？
- Can glasses prevent ultraviolet ray? 眼镜可以防紫外线吗？
- Why can ultraviolet ray synthesize vitamin D? ? ? ? 紫外线为什么能合成维生素D????
- Prevent glasses mark of ultraviolet ray? 防紫外线的眼镜标志？
- The ozone layer shields the earth from the sun's ultraviolet rays. 臭氧层保护地球不受太阳紫外线的辐射。
- Ultraviolet rays, dust, air-conditioning can make your skin coarse. 紫外线、灰尘、空调等都会使皮肤粗糙。
- The ultraviolet ray light can sterilize the packaging material. 机内装有紫外线灯，能对包装材料进行消毒灭菌。
- Under ultraviolet rays, oxygen is photolysis, thus producing ozone. 空气中氧气在紫外光的照射下，发生光解作用，产生臭氧。
- Oxygen can be changed into ozone by ultraviolet rays. 氧气在紫外光的作用下可转变为臭氧。
- Ultraviolet rays, dust,air-conditioning can make your skin coarse. 紫外线、灰尘、空调等 都会使皮肤粗糙.
- As the sun’s ultraviolet rays, we do not see the sun it? 就象太阳光的紫外线一样，难道我们就不见太阳光吗？
- The characteristics of an X ray detector composed of PIN photodiode and charge sensitive preamplifier are studied . 本文简要介绍了X射线实时成像系统,综述了国内外该系统在食品安全检测中的应用。
- The ultraviolet rays react with skin cells to produce the vitamin. 紫外线辐射和皮肤细胞反应后可以产生这种维他命。
- Ultraviolet rays,dust, air-conditioning can make your skin coarse. 紫外线、灰尘、空调等都会使皮肤粗糙.
- Solar light can send off ultraviolet rays, just like the sun does. 太阳灯能够像太阳一样放射出紫外线。
- Natural gamma logging is a kind of most basic methods of well logging in cased wells which measure with gamma ray detector along well during logging. 自然伽马测井是套管井测井中一种最基本的方法。它以地层自然放射性为基础,测井时用伽马射线探测器沿井眼进行测量。
- The ultraviolet ray light can sterilize the packing material. 机内装有紫外线杀菌灯，能对包装材料进行消毒灭菌。
- The ozone layer screens out dangerous ultraviolet rays from the sun. 臭氧层能挡住来自太阳的有害紫外线。
