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
    精品久久综合日本欧美| 国产精品久久精品国产| 我的性感妹妹在线观看| 中文字幕日韩精品人一妻| 九九热精彩视频在线播放| 91久久精品国产成人| 男人把女人操得嗷嗷叫| 色无极东京热男人的天堂| 午夜精品国产精品久久久| 一区二区免费视频中文乱码国产| 国产大屁股喷水在线观看视频 | 性欧美唯美尤物另类视频 | 欧美av人人妻av人人爽蜜桃| 欧美亚洲国产日韩一区二区| 午夜精品在线视频一区| 日本高清加勒比免费在线| 91欧美激情在线视频| 亚洲午夜av久久久精品| 99热在线播放免费观看| 欧美日韩国内一区二区| 亚洲最新av在线观看| 国产情侣激情在线对白| 九九热九九热九九热九九热| 日本高清一道一二三区四五区| 国产精品不卡一区二区三区四区 | 国产女同精品一区二区| 亚洲天堂精品1024| 麻豆国产精品一区二区三区| 在线免费视频你懂的观看| 国产精品熟女乱色一区二区| 国产乱人伦精品一区二区三区四区| 亚洲精品成人午夜久久| 国产亚洲成av人在线观看| 午夜福利黄片免费观看| 神马午夜福利免费视频| 成人精品视频一区二区在线观看| 国产一区二区三区四区免费| 内射精子视频欧美一区二区| 黄色美女日本的美女日人| 欧美大胆美女a级视频| 国产美女网红精品演绎|