现在， 盒式磁带录音机过时了。

Cassette tape recorders are out of date now.

螺旋扫描式磁带录像机

helical scan recorder

录像带空白或者先前录制好的盒式录像带

A cassette containing blank or prerecorded videotape.

盒式音像带上有个小窗， 能看见里面的磁带。

There is a little window in the cassette case so that you can see the tape.