If single scale instruments are used, the low scale instrument should be 0-3 volts and the high scale instrument may be 0-20 volts.是什么意思_If single scale instruments are used, the low scale instrument should be 0-3 volts and the high scale instrument may be 0-20 volts.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句