当包装数量不能达到最大时，剩余空隙部位采用辅助材料填满。

When Packaing quantity don't reach max, empty is buried by buffer material.

youdao

当包装数量不能达到最大时，剩余空隙部位采用辅助材料填满。

When Packaing quantity don't reach max, empty is buried by buffer material.

youdao