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The port valve is a key part in a piston pump.
配流阀是柱塞泵中十分重要的元件。
youdao
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The conclusions are helpful to the noise control of piston pump.
研究结果有助于柱塞泵的振动噪声控制。
youdao
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The conclusions are helpful to the noise control of piston pump.
研究结果有助于柱塞泵的振动噪声控制。
youdao