两道防线
![两道防线](../cache/1190748.jpg)
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使用Windows的访问控制表(ACL)所提供的安全机制和数据库的触发器控制技术,分别在数据库的外部和内部构筑了两道防线,把数据库的安全性提升到一个较为理想的状态。
To enhance the security of database to an ideal degree , also construct two defense lines both outside and inside the database with the safe mechanism provided by the ACL in Windows and the trigger in the database .
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因此分析少筋砼结构的可靠性必须考虑两道防线失效的相关性。
Thus , the correlation between two limit states of rare-reinforced concrete structure must be considered in the reliability analysis .
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对于两道防线且导弹兵器数目较少时,可采用完全枚举方法;
On condition that the number of missile weapon system is less in two lines of missile defence , it can be solved by an entire enumerate method .
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构筑两道内部防线;
To form two internal lines of defence ;
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构筑两道内部防线;论信息安全的道德防线
To form two internal lines of defence ; On the Moral Defense of Information Security
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构筑石油安全防线构筑两道内部防线;
Set up an Oil Safety Prevention System to form two internal lines of defence ;
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支撑框架刚度较大,具有两道纯抗震防线,适应于抗震设防较高的地区。通过有限元软件ANSYS对6层框架进行动力分析,比较这三种框架的抗震性能。
Braced frames own high stiffness and two lines of seismic-resistant defence , and adopted in high seismic-resistant area , then analyzed the dynamical properties of 6-story frame by finite element software ANSYS , compared the seismic-resistant properties of these three types of frames .