The gross weight of the sack of flour is more than the net weight of the flour alone.

面粉袋的总重量超过了面粉的净重量。

Yes, I have, Mr. Thomas. We'll pack them two dozen to one carton, gross weight around 25 kilos a carton.

看过了，托马斯先生。我们一纸箱装两打，每箱毛重25公斤。