A device that is installed in a tape reel to permit writing on the tape.
一种器件(实为一种塑料环)，将它装在磁带盘上便允许在磁带上写入数据。
2
The invention discloses a lifting device for a reel of a harvester.
本发明公开了一种收割机上拨禾轮用的升降装置。
3
The electrical device used on the axle of a spool or reel to provide electrical continuity between the rotating reel core and the stationary reel chassis.