hydro core-knock-out machine

例句：

1. 1. This hydro core-knock-out machine is used to clean the oil filter in the engine.
   这台水力核心-敲出机器用于清洁发动机的油滤。
2. 2. The engineers developed a new hydro core-knock-out machine to improve efficiency.
   工程师们开发了一种新的水力核心-敲出机器，以提高效率。
3. 3. The hydro core-knock-out machine was tested on a small scale before being deployed in large-scale production.
   在大规模生产之前，这个水力核心-敲出机器进行了小规模测试。