图10显示的数据流与之相同，但该数据流是沿着可选分支而不是并行分支流动的。
Figure 10 shows the same data flow, but now flowing along alternative branches instead of parallel ones.
数据流错误一般出现在数据沿几个执行分支流动的时候，这些执行分支可以捕获可选或并行行为。
Data-flow errors typically arise when data is flowing along several execution branches that can either capture alternative or parallel behaviors. This produces three modeling situations.
流体在槽式液体分布器进料预分布管中的流动属于分支流系统，其流型复杂多变。
The flow in feeding pre-distributed pipes of slot liquid distributor is divergent streams, and its flow pattern is very complicated.
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