The following is an example of the cost in performance of off-designoperation.
下面是非设计点工作在性能上损失的一个例子。
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The unsteady flow in a draft tube of Francis turbine under the off-designoperation is produced by the dynamic behavior of a helical vortex rope with the dead core.
This is a very important design feature: whenever the server applies a transformed operation, it sends that operation off to all of its clients without delay.