英文：It controls how data and database are shared among users on the network and how users access master copies of data and application software on the centralized hard disk.
中文：它控制着网上用户如何共享数据和数据库, 以及用户如何存取中央硬盘上的数据和应用软件的主拷备。
英文：It is incumbent upon all users of this equipment to familiarize themselves with the safety procedure.
中文：凡使用这种设备的人都应熟悉安全程序.
英文：A computer larger than a minicomputer that can handle more users and large programs.
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