reduction roll

例句：

1. 1. Thecompany is rolling out a new product lineto reduce its costs.
   公司正在推出新产品线以降低成本。
2. 2. The government has rolled backthe tax rate to help businesses recover.
   政府已经下调税率以帮助企业复苏。
3. 3. The engineerused a reduction roll to make the cuttingmore precise.
   工程师使用一个减少卷来使切割更加精确。