reciprocating rolling mill

例句：

1. 1.This machine is used to cut metal sheets into strips.
   这台机器用来将金属板材切成条状。
2. 2. The reciprocating mill is essential for the production of steel.
   往复式轧机对于钢铁生产至关重要。
3. 3. The reciprocating mill has a high efficiency and low noise level.
   往复式轧机效率高且噪音低。