当出现故障时，此集成可能使故障排除变得非常困难，因为需要处理很多源，并且框架允许分布式控制。
This integration can make things difficult when trouble arises because there are so many sources to deal with, and the framework allows for distributed control.
这种游艇式的房子可以通过公共设施来获取水源，排除废水，接通电力，通讯，交流天线和英特网。
The houseboat is connected to the public infrastructure for water, waste water, electricity, telephone, community antenna and Internet.
此类任务需要显式地表示为人工任务，而不是透明的Web服务，因为用于选择第二个审批人的规则必须将第一个审批人排除掉。
Such tasks need explicit representation as human tasks, not opaque Web services, because the rule used to select the second approver necessarily excludes the first approver.
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