Fluorescent light attenuation, prolong lamp life.
灯管光衰小，延长灯管寿命。
However, because of difficulties in measuring light attenuation in canopy gap and complex structure of forest canopies.
但是、由于林隙结构极为复杂，难以精确地测量林隙上方和周围树冠空隙的透光情况。
This paper describes the principle, method and apparatus for measurement of technical light attenuation length of plastic scintillators. The factors that influences this parameter are discussed.
本文报道了塑料闪烁体的技术光衰减长度的测量原理、方法和测量装置，并对影响此参数的因素进行了讨论；
Even with the attenuation factor blending into our lighting equation, still, the maximum amount of light a surface receives is (N. L).
虽然我们已在光照方程式中加入了混合衰减因子，但是还需要表面的最大值光照数量。
Based on analysis on transmission property of red laser beam, impact from background light, attenuation and scintillation are discussed.
基于对红光激光束大气传输特性的分析，讨论了激光束传输过程中背景光干扰、大气衰减和湍流效应的影响。
Noise attenuation section should be in place where is wide, relatively light discrepancy in elevation, and where the earth's surface vegetation of present position is representative.
噪声衰减断面应选在开阔、高差较小的地方，所处位置地表植被具有代表性。
The scattering of fog particle influence the images by three aspects: the attenuation of object light, the scattering of air light and the multi-scattering of fog particle.
雾滴的散射通过三个方面对图像产生影响：雾滴对成像光线的透射衰减，空气光即非成像光线的散射及雾滴的多次散射。
As the outdoor atmospheric conditions and the degradation of the image are inseparable, analysis of light transmission occurs during the physical process of scattering and attenuation.
由于户外图像的退化与大气状况密不可分，分析了光在传输的过程中发生散射和衰减的物理过程。
Reasonable results have been obtained from these experiments: both upwelling and downwelling light show exponential attenuation with increasing depth;
大部分数据显示， 水下上行光和下行光对深度有良好的指数衰减；
The atmosphere attenuation to 650 nm light and the dot whipping caused by air turbulence were analyzed. The signal transmission waveform and communication eye diagram of the system were recorded.
分析了大气对光信号的衰减以及大气湍流造成的光斑抖动对通信的影响，记录了系统的信号传输波形和通信眼图。
Attenuation, Scattering, Modeling water surface, Light shafts, Caustics.
衰减，散射，水面建模，光线束，焦散。
The light path in the conduction process loss, avoid the traditional cutting bed due to optical transmission problems caused by large attenuation of laser cutting power.
使光路在传导的过程 中损失最小，避免传统裁床由于光路传输问题而造成激光切割功率的大量衰减。
Fiber Fabry-Perot sensor has the advantage of light mass, thin diameter, passive, electric insulating, anti electromagnetic interference and low attenuation.
光纤法珀传感器具有质轻径细、无源、电绝缘、抗电磁干扰、信号衰减小的优点。
Create an "Omni" light align and link it to the sphere change its Settings and the "Far Attenuation" parameters that it doesn't illuminates the whole room (img. 6).
创建一盏泛光灯，对齐并链接到球体上，更改它的设置和远处衰减属性，这样它不至于照亮整个房子。
But under sea ice, the attenuation coefficient of PAR is little bit different, as the spectrum of the light has been changed by selective absorption through the sea ice.
在海冰覆盖的条件下，PAR的观测结果与无冰海水的PAR有明显差别。由于海冰选择性的吸收，穿透海冰进入海洋的PAR组分已经不同，海水对PAR的衰减系数也会相应变化。
But under sea ice, the attenuation coefficient of PAR is little bit different, as the spectrum of the light has been changed by selective absorption through the sea ice.
在海冰覆盖的条件下，PAR的观测结果与无冰海水的PAR有明显差别。由于海冰选择性的吸收，穿透海冰进入海洋的PAR组分已经不同，海水对PAR的衰减系数也会相应变化。
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