There has bigger eccentricity of rotary piston pump s rotary quality, which can produce bigger vibration when it running if no finer quality balance.是什么意思_There has bigger eccentricity of rotary piston pump s rotary quality, which can produce bigger vibration when it running if no finer quality balance.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句