[电] copper oxide rectifier, copper-oxide rectifier, oxide rectifier
yǎng huà tóng zhěng liú qì ㄧㄤˇ ㄏㄨㄚˋ ㄊㄨㄥˊ ㄓㄥˇ ㄌㄧㄡˊ ㄑㄧˋ