可调电压源 potential source: 电位源;电势源; 潜在污染源; 潜在源; 潜在资源; 压源source potential: 电位源; 源岩潜力source variable: 源变量constant-potential welding source: 恒电压焊接源contact potential ion source: 接触电位离子源下载手机词典可随时随地查词查翻译