?液压固有频率

high frequency varistor 高频电压敏电阻器 hydraulic natural frequency 液压固有频率 impedance respiratory frequency transducer[sensor] 阻抗式呼吸频率传感器 ..

?液压本来就有频率

... ion-scattering spectroscopy(iss)离子散射谱法 hydraulic natural frequency液压本来就有频率 humidity uniformity湿度匀称性 ...