这种黑物质不发光，但它远远重于银河系数以亿计的恒星，使银河系的总质量达到太阳的一至二万亿倍。
While it emits no light, this dark matter far outweighs the Milky Way's hundreds of billions of stars, giving the galaxy a total mass one to two trillion times that of the sun.
指出了发光区有效电场强度、发光区的宽度及电压分配系数等都是与频率有关的物理量。
The results indicate that the effective electric field (e), the width of the emission region and the distribution rate in voltage are frequency dependent.
各种尺寸颜色形状可镶嵌在不同型号的道钉上，发光的强度系数根据反光珠的数量和向前的角度不同而各异。
These reflectors with different size and color can be used in various Road Stud, the reflective effect is various according to different number of beads and angle.
随着LED芯片发光效率和散热技术的快速提升，显示屏分辨率越来越高，目前填充因子系数已达到10%。
With the rapid promotion of the LED chip light-emitting efficiency and heat dissipation technology, the fill factor coefficient of the LED display has been up to 10%.
最后，为了便于在道路照明中运用，还给出了由相对发光效率计算相对视觉反应时间和乘法系数的表达式。
Finally, in order to use the result easily in road illumination, the article gives out the calculation formula of relative visual sense reaction time and multiplication coefficient th…
最后，为了便于在道路照明中运用，还给出了由相对发光效率计算相对视觉反应时间和乘法系数的表达式。
Finally, in order to use the result easily in road illumination, the article gives out the calculation formula of relative visual sense reaction time and multiplication coefficient th…
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