God doffers to exchange what He has for what we have.
神会提供他有的东西和我们需要的交换。
2
The card usually consists of two cylinders and their associated doffers.
梳毛机通常由两个锡林及和它们相联的道夫组成。
3
A random roll and a leveling roll are sequentially arranged at the front of the two doffers. The doffers, the random roll and the leveling roll rotate anticlockwise.