基本解释[動力與電氣工程]滑動電阻器滑臂電阻词组短语短語slide e resistor 滑動電阻器slide -wire e resistor 滑線電阻器slide resistor sliding resistor 滑動電阻器专业释义動力與電氣工程滑動電阻器滑臂電阻