improve the social security system 完善社会保障制度
Redundancy design is an effective way to improve the system security and mission reliability of the flight control systems.
冗余设计是提高飞行控制系统安全性与任务可靠性的一种重要手段。
When those were finished, she concluded the session with a brief restatement of how the new system will improve security and peace of mind in the municipal building.
当这些工作完成后，她在会议结束时简短地重申了新系统将如何改善市政大楼的安全与安宁。
I'm just saying that in general, secrecy about how your security system works does not improve security, but rather usually the reverse.
我只是要说，通常情况下对安全系统的运作方式保密并不会提高安全，事实恰恰相反。
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