采用互锁搭扣结构，伸缩性好，泄漏率低，能承受一定扭矩。
Hasp using interlocking structure, flexibility, low rate of leakage, can withstand a certain torque.
这个系统具有伸缩性好，扩展性强，能兼容、易维护、界面美观，功能实用的功能。
This system has good flexibility, expansibility, compatibility, easy maintenance, the interface is beautiful, functional and practical function.
在POJO集群化的方式中，发送的数据比较少，调用Hibernate和数据库的频率也比较低，因此伸缩性好一点。
In POJO clustering form, it sends less data and it calls Hibernate and the DB less frequently, so it scales better.
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