在法国,同许多国家一样,上个世纪来,水与电的结合,对促进水泵和水轮机制造业的进步,起了决定性的作用。人们逐渐试验研究了不同型式的水轮,反击式机械(水轮机和水泵)借助于比转速的概念出现了统一分类。对于高比转速的水轮机,“灯泡”式机组与“卡普兰”式水轮机进行竞争。 In France, like many other countries, the combination of water and electricity has played a decisive role in promoting the progress of pump and turbine manufacturing over the past century. People gradually experimentally studied different types of waterwheels, and countermeasures machines (water turbines and water pumps) were uniformly classified by the concept of specific speed. For high speed turbines, the “bulb” unit competes with “Kaplan” turbines.