船用无油空气压缩机的英文

oil-free marine air compre or

oil-free marine air compressor

• 船:    boat; ship; vessel ...
• 用:    40分钟跑完全程 run the c ...
• 无:    not have; there is ...
• 油:    oil; fat; grease
• 空气压缩机:    air compressor