The article analyses the reason of retrace line which is produced by changing line output transformer of TV set and its removing method on the basic of color TV set circuit and its working principle.是什么意思_The article analyses the reason of retrace line which is produced by changing line output transformer of TV set and its removing method on the basic of color TV set circuit and its working principle.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句