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
    亚洲av熟女国产一区二区三区站| 日韩精品在线观看一区| 久久精品国产在热亚洲| 欧洲一区二区三区蜜桃| 好吊色欧美一区二区三区顽频| 日本一级特黄大片国产| 国产内射一级一片内射高清| 香蕉久久夜色精品国产尤物 | 亚洲国产色婷婷久久精品| 亚洲一区二区精品国产av| 亚洲做性视频在线播放| 久久亚洲精品中文字幕| 九七人妻一区二区三区| 国产又粗又猛又长又大| 亚洲国产性感美女视频| 大香蕉精品视频一区二区| 国产在线视频好看不卡| 高清不卡视频在线观看| 久久热在线视频免费观看| 日韩精品一区二区三区av在线| 好东西一起分享老鸭窝| 99久久婷婷国产亚洲综合精品| 亚洲中文字幕在线乱码av| 日韩1区二区三区麻豆| 中文字幕欧美视频二区| 婷婷一区二区三区四区| 一区二区三区精品人妻| 日本午夜免费啪视频在线| 日韩精品福利在线观看| 黄片美女在线免费观看| 欧美日韩一区二区三区色拉拉| 91亚洲精品亚洲国产| 邻居人妻人公侵犯人妻视频| 欧美黄色黑人一区二区| 五月天综合网五月天综合网| 久久黄片免费播放大全| 草草草草在线观看视频| 亚洲av秘片一区二区三区| 日韩色婷婷综合在线观看| 国产日韩欧美专区一区| 91亚洲熟女少妇在线观看|