Warning: file_put_contents(): Only 0 of 6140 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/totle.com.cn/index.php on line 55 video frequency英英字典_video frequency剑桥英语解释_video frequency柯林斯英文解释_乐豆毛深蓝词典
1. N the frequency of a signal conveying the image and synchronizing pulses in a television broadcasting system. It lies in the range from about 50 hertz to 8 megahertz 视频