stack velocity

例句：

1. 1.The team is working hard to improve the stack velocity of their products.
   团队正努力提高产品堆叠速度。
2. 2. The new design has significantly increased the stack velocity of the machine.
   新设计显著提高了机器的堆叠速度。
3. 3.In order to reduce costs, the company is exploring ways to increase the stack velocity of its production line.
   为了降低成本，公司正在探索提高生产线堆叠速度的方法。