Model C31 Meters are multirange instruments and a plug-in type switch is used for range change-over,so for the sake of easy operation.是什么意思_Model C31 Meters are multirange instruments and a plug-in type switch is used for range change-over,so for the sake of easy operation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句