核设施营运单位应当采取必要措施，防范网络攻击、侵入、干扰和破坏，应对网络安全事件，保障核设施安全稳定运行。
developed machine-readable format called "MICR" for magnetic ink character，推荐阅读91视频获取更多信息
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This effectively meant the old method was dead.
With BPatterns, none of that is required. A pattern is just a block. Add one more message and simple DoIt will do the job.。im钱包官方下载对此有专业解读
圖像來源，BBC Chinese / Lok Lee