短語詞組短語external thermal resistance [電]外熱阻;外熱阻英語external themal resistance 外熱電阻;熱外電阻external cathode resistance 陰極輸出器外電阻external motion resistance 外部運(yùn)動(dòng)阻力external heat resistance 外熱阻external respiratory resistance 外加呼吸阻力external critical resistance [電]外臨界電阻soil external frictional resistance 土壤外部摩擦阻力external diffusion resistance 外擴(kuò)散 返回 external resistance