LBAC是MandatoryAccessControl (MAC)的一个实现，它为存储在数据库中的敏感数据提供了较高级别的安全保障。
LBAC is an implementation of Mandatory Access Control (MAC), which provides a reasonable level of security assurance for sensitive data stored in database.
在数据层只有低级别安全控制能力的分布式系统中，往往在业务层实现附加的安全控制以保障整个系统的安全。
In these distributed systems with lower security at data layer, additional security control have to be realized at business layer to guarantee the whole system's security.
在数据层只有低级别安全控制能力的分布式系统中，往往在业务层实现附加的安全控制以保障整个系统的安全。
In these distributed systems with lower security at data layer, additional security control have to be realized at business layer to guarantee the whole system's security.
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