Straight conjugate internal gear pump is a new kind of hydraulic component with low noise.
直齿共轭内啮合齿轮泵是一种新型低噪声液压元件。
The shock associated noise is an important component of choked valve jet.
冲击伴随噪声是阻塞阀门噪声的重要成分。
The shock associated noise is an important component of choked valve jet.
冲击伴随噪声是阻塞阀门噪声的重要成分。
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