non-lubricated compressor

例句：

1. 1. The newnon-lubricated compressor is much more efficient than the oldone.
   新型无润滑压缩机比旧的更高效。
2. 2. The engineers designed a non-lubricated compressor toreduce maintenance costs.
   工程师们设计了一款无润滑压缩机，以减少维护成本。
3. 3. Thenon-lubricated compressor is used in industrial processes where lubrication is not necessary.
   无润滑压缩机用于工业过程中，在这些过程中不需要润滑。