The key design principal that makes Seam so easy to use is "Configuration by exception".

使Seam易用的主要设计原则是“非常规的配置”。

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For example, if the user tries to configure a V5 node by creating a new instance of a configuration type, or by setting a new V6 configuration attribute, an exception will be raised.

例如，如果用户试图通过新建配置类型的实例或设置新的版本6的配置属性来配置版本5的节点时，会出现异常。

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Operation of the system would be similar to that for the side-by-side configuration with the exception that wastewater would have to be pumped into the pretreatment tank.

该系统的运行方式与并行结构运行方式类似，不同的是需要将污水通过泵运输到预处理池中。

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