您要查找的是不是：
- When the lighting level falls below about 1 lux the cones cease to act. 当照度低于约1勒克司时，锥状细胞就不再起作用。
- Check lighting levels /candles (for dinner only). 检查灯光亮度/晚餐检查烛光。.
- Control Light. Adjust light levels up or down. 操控光亮：使周围的亮度变亮或变暗。
- The image-dissector scanner is another heavily used and very successful low light level detector. 析象管扫描器是另一种常用而且很成功的微光探测器。
- Fist Products: Lighting level plexiglass tube &bar, extensive export Europe and the United States. 拳头产品：灯饰级有机玻璃管&棒，广泛出口欧美各国。
- Light the screen from above or behind you with a table lamp. Its generally recommended that the background lighting level is about 300-500 lux. 显示器的光线强过或是弱于台灯的光线。一般推荐背景光线在300-500勒克斯（照明单位）。
- When low light level(LLL)image is processed by average filter, indistinctness may be caused seriousiy. 均值滤波法处理微光图像时会造成严重的图像模糊。
- In this paper,we aim at the low light level television aiming system equipped on some type of armed helicopter. 文中主要研究对象是某型武装直升机加装的微光电视瞄准系统。
- Optional equipment is said to include an amphibious capability, a low light level driving device and GPS. 可选择的设备据说包括水陆两栖能力，一套微光驾驶装置和GPS。
- Reggie: You could lower the light level around the aquarium and you could also get some fish which feed on algae. That would probably do it. 雷济：你可以把鱼缸周围的光线弄暗一点，还可以买些吃水藻的鱼，那应该就可奏效。
- Anyone who has walked through even a modestly dense forest can appreciate how much lower the light level is in the woods than it is in an open field. 任何人行经林荫之中，哪怕蓊郁程度只是中等，想必都很感激森林把光线挡掉许多，免得要在空旷处受到曝晒。
- Over half a century, photoelectronic imaging which consists mainly of low light level imaging and thermal imaging, has made marked progress, and demonstrated brilliant prospects. 半个世纪以来,光电子成像(主要包括微光成像和热成像)技术取得了惊人的发展,显示出极为辉煌的前景。
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- The order of the pollution for serious level to light level in the seven key river systems in 2001 is: Hai River,Liao River,Huai River,Huang River,Song Hua River,Yangtze River and Pearl River. 2001年，七大水系污染由重到轻的顺序依次是：海河、辽河、淮河、黄河、松花江、长江和珠江。
- We exposed both nocturnal and diurnal, or day-active, rodents to different light levels. 我们既把夜间活动的、也把日间活动的啮齿动物置于不同等级的光照环境中。
- The order of the pollution for serious level to light level in the seven key river systems in 2001 is: Hai River, Liao River, Huai River, Huang River, Song Hua River, Yangtze River and Pearl River. 2001年度七大水系污染由重到轻的顺序依次是: 海河、辽河、淮河、黄河、松花江、长江和珠江。
- Video signal-to-noise ratio (SNR) is an important com-prehensive performance index of the Low Light Level (LLL) Camera. Test and analysis of SNR play a very important role in evaluating anddesigning new LLL Cameras. 视频信噪比(SNR)是微光摄像机的一项重要的综合性指标,对它的测试与分析在评价和设计新型微光摄像机方面起着相当重要的作用。
- On the other hand, the sensitivity of ICCD can reach 10-4 lx and below, making it applicable for normal CCD in low light level, either at dawn or dusk (102lx), or under 1/4 moon light (10-2 lx), or star light (10-4lx). 二是使ICCD的灵敏度达到10-4lx以下,实现了 ICCD摄像器件在黎明或黄昏的照度下(102lx)在1/4月光下(10-2lx)、在星光下(10-4lx)都能有效的工作。
- It will also act as a bright white light, but in areas where the light is being reduce (as in the edges of caustics) it will decrease it‘s output light level and the rainbow colors will appear. 他同样也可以作为一盏亮白色的灯，但是在光线被减弱的区域（就像在焦散的边缘）他会减弱输出光的级别，这样彩虹的颜色就会显现。
- The portrait shows fine effects of light and shade. 这幅肖像画的浓淡色调表现得很好。
