[电学] 可变电阻(回转式变阻器) carbon film rotary variable resistor: 碳膜旋转可变电阻器rotary rheostat: 转式变阻器resistor, variable: 可变电阻器variable resistor: 变阻器可变电阻可变电阻器; 变阻器可变电阻器; 可变电阻器focus variable rheostat: 聚焦电位器下载手机词典可随时随地查词查翻译