feed screw nut

例句：

1. 1. The farmer used a feed screw to attach the hay to the horse.
   农民用一个饲料螺旋将干草绑在马身上。
2. 2. The engineer needed to replace the feed screw nut in the machine.
   工程师需要更换机器中的饲料螺旋螺母。
3. 3. The mechanic found that the feed screw nut was damaged during the repair.
   机械师发现修理过程中饲料螺旋螺母受损了。