超级块在每个文件系统的根上，超级块描述和维护文件系统的状态。
At the root of each file system is the superblock, which describes and maintains state for the file system.
交互块描述在某些条件或筛选器得到满足时，由于事件到达Business Events中而触发的操作。
An interaction block describes the action that will be triggered by the arrival of an event in Business Events when some conditions, or Filters, are satisfied.
这个部分描述当前存在的块的细节。
This section describes the chunk details that currently exist.
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