Public security work in colleges turn to be the guarantee for maintaining stability and safety as well as normal teaching and research, which is also a task with difficulty and policy.

高校安全保卫工作对维护高校稳定和安全、保证高校正常教育教学和科研秩序具有重要作用，是一项政策性强而工作难度大的工作。

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This paper probes emphatically into some countermeasures for maintaining the security of the public computer software system by using the software protection methods.

鉴于此，重点探讨了利用软件保护方法维护公用计算机软件系统安全的对策。

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The positive role of villagers' committees and urban residents' committees in maintaining public security must be brought into full play.

要充分发挥村民委员会、城市居民委员会维护社会治安的积极作用。

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The coup is seen as offering a better chance of maintaining order and preserving state institutions necessary for providing public services such as security, health care, electricity and water.

BBC: Saudi 'plan to topple Saddam'