press down system

例句：

1. 1. Theengineers are working on a new pressdown system to improve efficiency.
   工程师们正在开发一种新的压下系统以提高效率。
2. 2. Thecompany has invested heavily in developing a high-pressure down system for its oilrefineries.
   该公司在为其炼油厂投资开发高压压下系统。
3. 3. The newpress down system will help reduce the riskof accidents during construction.
   新的压下系统将有助于减少施工过程中的事故风险。