water-hammer pulse

These methods are not only suitable for examination of the concrete whose strength value is 20~ 120MPa, but one of them, i. e. acoustic velocity& water content combination method, also increase the precision of ultrason-ic pulse testing to a new stage.

此方法不仅适用于砼强度值为20～120MPa的工程检测，而声速&含水率综合法测强技术又使超声脉冲测试精度提高到一个新台阶。

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At present, the axial water thrust of the mixed flow turbine for large and medium scale hydropower stations is big so that the pressure pulse produced in the tailrace pipe often cause the vibration of generating unit.

设置消减压力脉动稳流片后尾水管数值解析目前大中型水电站混流式水轮机轴向水推力大，尾水管中涡带所产生的压力脉动常引起机组振动。

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The thermal flow body rose and into sea along connate fracture uninterrupted adsorbed and enriched minerogenetic elements during long pulse process, and reduced sulfosalt of sea water into H 2S.

沿同生断裂上升喷溢入海的热流体长期脉动过程中不断吸附、富集成矿元素，并将海水中的硫酸盐还原为H2S。

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Research on Pulse Plasma Propeller Model in Water Medium

水介质中脉冲等离子体推进模型的研究

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Characteristics of the Streamer Discharge in Water under Positive Pulse Voltage

正脉冲电压下水中流注放电特性的研究

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