Amplitude and phase of pressure fluctuation at the inlet of draft tube as well as the inner flow in draft tube are analyzed in detail.
详细分析了尾水管进口截面的压力脉动的幅值和相位，并对尾水管内的流动做了分析。
The result of the test shows that, there is obvious pressure fluctuation in the inlet channels, and the amplitude of the fluctuation depends on the working condition of the engine.
试验和分析表明，两缸进气道中存在着明显的压力波动，波动程度取决于发动机工况。
The result of the test shows that, there is obvious pressure fluctuation in the inlet channels, and the amplitude of the fluctuation depends on the working condition of the engine.
试验和分析表明，两缸进气道中存在着明显的压力波动，波动程度取决于发动机工况。
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