偷拍在线观看福利视频-亚洲一区二区三区蜜桃臀-加勒比在线日本免费二区-激情五月六月婷婷综合

Knowledge Center

Purchase and use led flashlight knowledge.It can help you buy a right flashlight and how to use torch light.best for Entry-level led flashlight enthusiasts

    What is the ultraviolet wavelengths?

    Due to the wide range of ultraviolet wavelengths from 10nm to 400nm.It is necessary to perform a more detailed classification.As base on ultraviolet wavelengths's optical characteristics to facilitate industrial applications.At present, the international society and the domestic vertical industries have different classifications.But we have made a more authoritative specification based on the standards of the lighting industry. According to the classification of ISO-DIS-21348, ultraviolet wavelengths are divided into the following 10 categories: Name?Short?Wavelength?EnergyLong wave ultraviolet light, ultraviolet light A, or black lightUVA400–315nm3.10–3.94eV?Short UltravioletNUV400–300nm3.10–4.13eVMedium wave ultraviolet light, ultraviolet light BUVB315–280nm3.94–4.43eVMid-ultravioletMUV300–200nm4.13–6.20eVShortwave ultraviolet light, ultraviolet light C, germicidal ultraviolet radiationUVC280–100nm4.43–12.4eVLong ultravioletFUV200–122nm6.20–10.2eVVacuum UVVUV200–100nm6.20–12.4eVLow-energy ultravioletLUV100–88nm12.4–14.1eVHigh-energy [...]

    By |May 25, 2022|Categories: Press Release|0 Comments
    Go to Top
    欧美精品一区二区水蜜桃| 日韩精品小视频在线观看| 亚洲中文字幕视频在线播放| 国产又粗又长又大高潮视频| 精品一区二区三区人妻视频| 91人妻人人澡人人人人精品| 欧美日韩在线第一页日韩| 久草精品视频精品视频精品| 日韩人妻少妇一区二区| 99久久精品国产麻豆| 欧美国产极品一区二区| 欧美日韩在线观看自拍| 欧美日韩免费观看视频| 欧美一级黄片欧美精品| 久久亚洲成熟女人毛片| 日韩精品中文在线观看| 免费性欧美重口味黄色| 91爽人人爽人人插人人爽| 欧美日韩精品综合一区| 国产又粗又爽又猛又黄的| 国产精品免费福利在线| 老富婆找帅哥按摩抠逼视频| 亚洲一区二区三区三区| 亚洲精品一区三区三区| 国产色偷丝袜麻豆亚洲| 日本高清加勒比免费在线| 亚洲天堂精品1024| 老熟妇乱视频一区二区| 国产精品久久久久久久久久久痴汉| 亚洲高清亚洲欧美一区二区| 视频在线播放你懂的一区| 中文日韩精品视频在线| 国产精品人妻熟女毛片av久| 真实偷拍一区二区免费视频| 九九热国产这里只有精品| 亚洲精品深夜福利视频| 亚洲a级一区二区不卡| 美国女大兵激情豪放视频播放| 亚洲欧洲在线一区二区三区 | 国产韩国日本精品视频| 国产一级性生活录像片|