compressed nitrogen造句

例句与造句

1. mfz series portable pressurs are high efficiency ones which use general dry powder as fire extinguishing chemical and the loaded compressed nitrogen gas as spray force
   mfz系列干粉灭火器是以普通干粉为灭火剂，以充装压缩氮气为动力的高效灭火器。
2. It's difficult to find compressed nitrogen in a sentence. 用compressed nitrogen造句挺难的