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机房好的视频安防监控系统工程-机房工程资讯

发布时间:2018-10-24 11:54:11   点击:
机房好的视频安防监控系统工程-机房工程资讯那么,我们所说的“超低照度”到底是什么呢?根据无线电工程学会(ieee)给出的标准定义:在广播级视频电平中,任何视频信号在播放时的亮度电平都不能超过100ire。当视频输出电平的振幅低于原始振幅的30%时,视频信号提供的图像将视为不可用

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广西快3ZHU:WENZHANGNEIRONGHETUPIANJUNLAIYUANYUWANGLUO,ZHIQIDAOXINXIDECHUANDI,BUSHIYONGYUSHANGYE,RUYOUQINQUANQINGLIANXISHANCHU!

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