At present, the scheme of enhancing robustness of the ALM include: reducing the frequency of failure nodes, failure detection and tree reconstruction technique, flood mechanism, multi-trees and rings.
目前增强应用层组播鲁棒性的方案主要包括：降低失效节点发生频率、失效检测和树重构技术、多树环结构和使用洪泛机制。
Because applications in a WebSphere Virtual Enterprise environment can therefore lose their sessions without an explicit application server failure, the frequency of session loss can be much higher.
因为WebSphere Virtual Enterprise环境中的应用程序在没有显式应用服务器故障的情况下会因此丢失它们的会话，因此会话丢失的频率会高很多。
Inverters can also automatically event of the failure of the faulty electrical switch to the state of emergency frequency.
也可以在变频器发生故障时自动将发生故障的电机切换到工频状态应急工作。
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