education with electric audio-visual aids的意思|示意

运用幻灯 [audio-visual education programme;education with electric audio-visual aids] 运用幻灯、投影、电影、电视、闭路电视等现代科技手段进行教学 [telephone;phone] 利用电信号的传输来传递话音的装置 .

电化教育 ... 电化记录法|electrochemical recording 电化教育|education with electric audio-visual aids 电化铝杆铱金笔|iridium fountain pen with anodized barrel ...