据演习指挥部有关负责人介绍，这次演习将围绕国庆60周年活动的安保反恐任务而进行，计划于6月中旬结束。
The exercise will focus on the safety of celebrations for the 60th anniversary of the founding of the PRC and will end in the middle of the month, a spokesman for directing headquarters said.
演出的晚上，主持人介绍到我，然后我穿过舞台走上指挥台，举起指挥棒示意大家开始。
The night of the performance, I was introduced, walked across the stage to the podium, and lifted the baton to start the group.
介绍了指挥自动化系统安全性的内容，安全性的等级及实现安全性的技术。
This paper introduces the Command Automation Systems, Securitylevel of Security, and the techniques to implement it.
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