Complex life evolved on the Earth's surface, but not on Mars or other planets in the solar system because on those planets, early surface life was killed by UV radiation.
复杂的生命在地球表面进化，而不是在火星或太阳系的其他行星上，因为在那些行星上，早期的地表生命被紫外线杀死了。
The absence of an oxygen atmosphere on Mars and other planets in our solar system means that these planets also lack an ozone shield that would protect surface-dwelling life from UV radiation.
在火星和我们太阳系的其他行星上没有氧气，这意味着这些行星也缺乏保护地表生物免受紫外线辐射的臭氧层。
There is also evidence that UV radiation reduces the effectiveness of the immune system.
还有证据表明，紫外线辐射可降低免疫系统的有效性。
UV radiation appears to diminish the effectiveness of the immune system by changing the activity and distribution of the cells responsible for triggering immune responses.
紫外线辐射似乎会改变触发免疫反应的细胞的活动和分布，从而降低免疫系统的有效性。
The overall design of the double spectrum image system is introduced and puts forward a wavelet fusion method based on fuzzy matrix for the UV and visible double image system.
介绍双光谱图像检测系统的总体设计，针对紫外与可见光双光谱成像系统提出了基于模糊矩阵的双光谱图像融合法。
This tutorial covers the basics of tiling textures as well as my 2 UV system for blending unique details and tiles.
本教程涵盖了平铺纹理的基础知识，以及我的2UV系统，用于混合独特的细节和瓷砖。
This system can automatically collect the UV index data, analyse and check the history database, research the law of UV radiation in the region.
该系统可自动采集紫外线强度指数数据，进行历史数据库的分析和查询，研究该地区紫外线强度的变化规律。
Exponential attenuation of UV atmospheric transmittance for the horizontal paths decides that the UV communication system works locally and safely.
水平方向上大气紫外透射比的指数衰减规律决定了系统工作的局域性和保密性。
After comparison and analysis, a UV detection scheme and a system structure is given.
经比较分析提出了一种紫外探测方案，给出了一种系统结构。
New type of UV imaging and detecting system is introduced.
提出一种新型的紫外成像检测系统。
Therefore, formulation system of UV curing coatings can form protective hard film on polycarbonate substrate.
研究了可在聚碳酸酯基材上形成保护硬涂层的UV涂料配方体系。
This result means that UV wavelengths are seen as distinct colors by birds and that UV cones participate in a tetrachromatic visual system.
这个结果意味著，鹦鹉会把紫外光波长看成不同颜色，而且，紫外光锥细胞参与了四色色觉系统。
This paper aims to standardize UV varnishing workflow and build a sort of estimate system about UV varnishing quality.
本论文是对印刷品UV上光工艺规范化和膜层质量评价体系的研究。
A hybrid microfluidic system produced by coupling a microfabricated glass chip with conventional silica capillary for UV absorbance detection was developed.
提出了一种基于芯片-毛细管复合装置的紫外检测-微流控芯片毛细管电泳分析系统。
The development of oligomer, active diluent(monomer), photoinitiator as major components of UV curing coatings system were described.
介绍了光固化涂料体系几种重要组分：低聚物、活性稀释剂（单体）、光引发剂的研究进展。
The novel PP special material used in automobile is prepared by using new ultraviolet light stabilizer-antioxidant (UV-AO) system.
采用新型紫外光稳定剂-抗氧剂(UV -AO)体系制备了汽车用新型聚丙烯专用料。
This isocratic system consists of a high pressure solvent delivery pump, an UV/VIS detector, a manual injection valve, and a solvent tray, a column and a Chromatography Workstation.
整套系统由高压输液泵、检测器、进样阀、溶剂托盘、色谱柱、工作站软件等组成；
UV curable powder paints, UV curable waterborne paints, hybrid UV curable paints, dual curing system, UV equipments and et al are described.
介绍了光固化粉末涂料、水性光固化涂料、混杂光固化体系、双重固化体系、光固化设备等。
Moreover, the UV has diffuse reflectance characteristics in the air. Ultraviolet communication system also has the ability to bypass the barrier.
此外，由于紫外线具有在大气中漫反射的特性，采用紫外光通讯系统，还具有一定的绕过障碍物的能力。
The whole system comprised a UV light source, three dimensional prototyping platform, nozzles, spraying set and controlling system of prototyping.
该系统主要由UV光源、三维成型平台、成型控制系统、喷头和喷洒作用机构五部分构成。
It is proved that UV channel is a minimum phase system and can use blind equalizer. Ber is not sensitive to the step size and tap number for CMA blind equalizer.
还证明了紫外信道是最小相位系统，可以进行盲均衡，结果指出，只要迭代次数足够，CMA盲均衡器输出误码率与滤波器阶数、迭代步长关系不是很明显。
Hybrid UV curing system includes free radical cationic hybrid UV curing system, free radical condensation polymerization system and free radical free radical system.
混杂光固化体系包括自由基阳离子混杂光固化体系、自由基缩聚混杂体系和自由基自由基混杂体系等。
Then, considering many respect such as light source, diluent and photoinitiator, mainly improving photoinitiating system, we found the solutions to oxygen inhibition of acrylic resin in uv-curing.
然后，结合丙烯酸树脂的光固化特点，从光源、活性稀释剂、引发剂体系等多方面考虑，主要是改进引发剂体系，找到了合适的抑制表面氧阻聚的方法。
This of course relies on there being UV dye in the system when the leak occurs so it is in your interest to make sure there is.
这当然是因为在系统中有紫外线着色剂。当泄漏发生时，要确保系统中存在UV着色剂。
The results of the simulation clearly show the influence of varying the parameters of the UV radiation system on the intensity distribution.
计算机模拟结果直观、清晰地反映出紫外光辐照系统各参数变化对光强分布的影响。
A novel light source system for UV curing is presented.
提出了一种适用于紫外光固化的新型光源系统。
I am currently on the market demand for the development of UV than UV drying system control system.
我公司目前根据市场的需求对UV干燥系统开发多个UV控制系统。
UV-B and UV-A rays have varied affects on your skin, your immune system, and your body as a whole.
紫外线b和紫外线的照射对你的皮肤有不同影响，你的免疫系统、身体的整体水平。
UV-B and UV-A rays have varied affects on your skin, your immune system, and your body as a whole.
紫外线b和紫外线的照射对你的皮肤有不同影响，你的免疫系统、身体的整体水平。
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