The converging type or shape of conduits of tailrace surge tank of multi-unit system is of important influence on flow conditions and head losses, therefore it deserves atterntion in design.
多机共用尾水调压室的底部管道交汇型式对调压室布置和运行时流态和水头损失有重要影响，是设计中需认真对待的问题。
Low applicable head, high flow and high efficiency characterize bulb type tubular turbine unit. These kinds of units are widely used for the development of low-head water resources.
灯泡贯流式机组具有适用水头低、流量大以及效率高等特点，广泛用于开发低水头水力资源。
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