您要查找的是不是：
- The pilot reports bad visibility over the airport. 飞行员向机场报告能见度很低。
- ultraviolet and visible detector 紫外光及可见光检测器
- Black smog reduced visibility to about fifty yards. 黑色的烟雾使能见度降到大约五十码左右。
- Visibility was down to 100 metres in the fog. 大雾中能见距离已降至100米。
- visibility detector 能见度检定器
- Dense fog is covering roads in the north and visibility is very poor. 浓雾笼罩了北部的公路，能见度很低。
- An executive with high visibility. 有很大吸引力的总经理
- A marine detector is a hydrophone. 海洋检波器是水中地震检波器。
- Vertical visibility 50m in fog, sky obscured. 垂直能见度50米，有雾，天空不明。
- Thermopile is usually a blackened thermal detector. 热堆一般是个涂黑了的热探测器。
- Visibility is good [bad, zero, one kilometer]. 能见度良好 [不好,零,一公里]
- The detector tube is filled with nitric oxide. 检测管中充满了氧化氮。
- Raised visibility range for VASI lights at night. VASI（跑道两侧灯光）在夜间视距内会高于地面。
- Establish proper injector and detector temprature. 给进样口和检测器设定恰当的温度。
- Yes. The visibility was excellent all the way. 能够。一路上能见度极好。
- Please walk through the metal detector. 请走过金属检测器。
- Fog severely restricted visibility. 浓雾严重影响了能见度。
- Design Digial Versatile Metal Detector. 种数字式金属探测器设计。
- It was raining heavily and visibility was poor. 当时天下着大雨，能见度很低。
- Simulating alarm test for fire detector. 火警检测器自动报警试验。
