positive-displacement air compressor

例句：

1. 1. The positive-displacement air compressoris an essential tool for maintaining the cleanliness of our office.
   正位移空气压缩机是我们办公室保持清洁的重要工具。
2. 2. The positive-displacement air compressor wasdesigned to improve efficiency in industrial processes.
   正位移空气压缩机被设计用来提高工业过程的效率。
3. 3. The positive-displacement aircompressor has become a popular choicefor many businesses looking to reduce their carbonfootprint.
   正位移空气压缩机已经成为许多企业减少碳足迹的热门选择。