The gunsight has an infrared lens for night vision.
射击瞄准器装有用于夜间视力的红外线镜头。
Infrared light or the infrared part of the spectrum.
红外线红外线光或光谱的红外线部分
This is necessary because the infrared rays have longer wave lengths than the visible light rays you see and focus with, and the camera lens focuses them slightly further back inside the camera.
因红外线的波长大于您看到和对焦的可见光,故相机镜头对红外线光对焦时,应在相机内稍后处。
scanned laser infrared microscope
扫描激光红外显微镜
Space Infrared Telescope Facility
空间红外望远镜设施
fast-scanning infrared microscope
快速扫描红外显微镜
infrared prism interferometer-spectrometer
红外棱镜干涉光谱仪
airborne infrared astronomy telescope
航空红外天文望远镜
Fourier transform infrared spectroscopy
傅里叶变换红外分光镜
Attach the infrared filter and focus on the subject. Read the indicated distance off the lens barrel.
按上红外线滤光片,对拍摄景物对焦,请读出镜头筒指示的距离。
opticalIRUV navigation
光学／红外线／紫外线导航
infrared heat lamp (bulb)
红外线加热灯（泡）
infrared colour photography
红外(线)彩色摄影
IRSP (infra-red spectrometer)
红外线分光计，红外线分光仪
infrared image converter
红外变像管;红外图像转换器;红外线像变换器
Most of these transmit high levels of invisible infrared radiation which can cause a thermal retinal burn.
大部份不安全的滤镜都能使高能量而不可见的红外线穿透,能使视网膜灼伤.
Shift that distance setting over to the red infrared index mark. Set the exposure in accordance with instructions for the film.
移动镜头筒式距离设置超过红外线指示标记位置,并按照胶卷说明书,设置曝光。
Generating, using, or sensitive to infrared radiation.
产生红外线的产生或使用红外线辐射的，对红外线辐射敏感的