可伸缩的NAS存储设备必须有办法执行防病毒功能，可以智能化地扫描文件，比如在打开或关闭文件时。
Scalable NAS storage devices must have a way for an antivirus function to perform scans on files intelligently, such as when they're opened or closed.
多功能智能电子钟以AT89C2051芯片为核心，采用静态与动态相结合的扫描方式显示。
The chip of AT89C2051 is based on as the core of intellectual electronic-clock, and the scanning mode is applied to display by combining dynamic scan with static scan.
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