In the software development community, it describes the security features of a system.
在软件开发团体中，它描述了系统的安全特性。
Think of it as having a security guard at a gated community along with your own home security system.
可以这样看待两种验证，小区大门处的一名保安和您自己的家庭安全系统。
There are two main bodies for constructing the system of community security service:one is the community's own security service force, the other is the outside social force.
社区安全服务社会化体系的两大构成主体是社区自身的安全服务力量和外来为社区安全服务的社会力量；
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