magnetic powder-impregnated tape

例句：

1. 1. This magneticpowder-impregnated tape isvery useful for recording audio.
   这种磁性粉末涂覆带在录音方面非常有用。
2. 2. Thetechnician used this tape to connect the speakerstogether.
   技术人员使用这种带子将扬声器连接起来。
3. 3. The magnetic powder-impregnated tape was easy to install and hada long lifespan.
   这种磁性粉末涂覆带安装简便，使用寿命长。