This paper discusses the methods of reducing pressure pulsation in high load zone of Francis turbine models.

针对混流式模型水轮机研发中有关降低高部分负荷压力脉动的方法进行了探讨。

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Eighteen seconds later, you have slowed that aircraft to hover speed and can sit down in the landing zone to quickly on- or off-load the maximum things on the aircraft.

CENTERFORSECURITYPOLICY: V-22: A discussion on the way ahead