其他中介模式提供了对安全和管理策略定义点的直接或间接访问，以便中介流能够执行适当的控制。
Other mediation patterns provide direct or indirect access to the security and management policy definition points so that the mediation flow can perform the appropriate control.
软件的日益广泛应用逐渐改变了控制系统的故障模式，因此对新的安全故障技术的研究具有重要的意义。
The widely application of software increasingly change the malfunction mode of control system, so the significance of studying new safety technology becomes very important.
如果不能同时满足这四个条件，则控制或操作模式选择器必须使得设计和制造用来确保有安全干预区的其他保护措施起作用。
If these four conditions cannot be fulfilled simultaneously, the control or operating mode selector must activate other protective measures designed and constructed to ensure a safe intervention zone.
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