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
    日本一本不卡免费视频| 一区二区三区四区亚洲专区| 亚洲国产欧美久久精品| 国产亚洲精品俞拍视频福利区| 亚洲欧美日本成人在线| 欧美野外在线刺激在线观看| 亚洲中文字幕人妻系列| 久久99青青精品免费| 国产在线视频好看不卡| 人妻少妇系列中文字幕| 99国产高清不卡视频| 五月激情五月天综合网| 亚洲午夜福利视频在线| 91欧美激情在线视频| 黄色美女日本的美女日人| 欧美日韩视频中文字幕| 欧美日韩在线观看自拍| 国产午夜福利在线免费观看| 三级高清有码在线观看| 一区二区三区四区亚洲另类| 国产一区欧美一区日本道| 最新69国产精品视频| 中文字幕中文字幕在线十八区| 精品精品国产自在久久高清| 欧美又大又黄刺激视频| 1024你懂的在线视频| 国产在线小视频你懂的| 69久久精品亚洲一区二区| 日本中文字幕在线精品| 五月婷婷欧美中文字幕| 一区二区日韩欧美精品| 国产性色精品福利在线观看| 国产在线不卡中文字幕| 欧美日韩中国性生活视频| 精品国产丝袜一区二区| 日本人妻免费一区二区三区| 精品女同一区二区三区| 亚洲第一香蕉视频在线| 尹人大香蕉中文在线播放| 亚洲精品国男人在线视频 | 久久国产精品热爱视频|