备用的一部分；一双预备的运动鞋。

A spare part; a spare pair of sneakers.

youdao

自动桥位采用双剪切设计，无须更换剪切刀，附有备用装置。

Double cutting design is applied to automatic bridge site, no blade changing, with prepared device.

youdao

自动桥位采用双剪切设计，无须更换剪切刀，附有备用装置。

Double cutting design is applied to automatic bridge site, no blade changing, with prepared device.

youdao