| 1. | 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。 |
| 2. | 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。 |
| 3. | 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。 |
| 4. | Check lighting levels / candles ( for dinner only )
检查灯光亮度/晚餐检查烛光。 |
| 5. | Control light . adjust light levels up or down
操控光亮：使周围的亮度变亮或变暗。 |
| 6. | Verification regulation of low light level illuminance meter
微弱光照度计检定规程 |
| 7. | General specification for low - light level television cameras
微光电视摄像机总技术条件 |
| 8. | Verification scheme of measuring instruments for low light level photometric
弱光光度计量器具检定系统 |
| 9. | Analysis and fusion methods on low light level image and ultra - violet image
微光图像和紫外图像分析与融合方法研究 |
| 10. | ( 3 ) both different light levels and defoliation caused changes of leaf nitrogen content
( 3 )光照条件的不同和叶损失都会导致植物叶n含量的变化。 |
