Professor Wang need to use the multimedia computer system, principal arranger to help staff prepare.
王教授需要使用多媒体计算机系统，请校长安排人帮员做好准备。
The principal procedure is shown for the simulation of phases separation with computer.
文中给出了用计算机进行两相分离模拟的主要步骤。
Principal: No, it's not the computer room. It's the teacher's office.
校长：不，它不是你的计算机的房间。它是老师的办公室。
What are the principal measures used to protect computer security?
哪些主要措施来保护计算机安全？
What are the principal measures used to protect computer security?
哪些主要措施来保护计算机安全？
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