The role of computer simulation in teaching systems and control theory.
用教学系统的电子计算机模拟的角色和控制理论。
In the teaching process, teaching systems based on Internet emerge in an endless stream.
在教学过程中，基于互联网络的教学系统正层出不穷。
Police teaching and training equipment and systems;
警察教学训练设备及系统；
Police teaching and training equipment and systems;
警察教学训练设备及系统；
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