短語詞組短語speed regulation characteristic 轉速調整特性speed torque characteristic test 機械特性測試speed load characteristic 轉速負荷特性曲線;負荷特性曲線speed regulating characteristic 調速特性speed control characteristic 調速特性Rotational Speed Adjustment Characteristic 轉速調節(jié)特性speed regulator characteristic 調速器特性low -speed-characteristic 低速特性 返回 speed characteristic