本文阐述了日本压缩机、鼓风机和通风机等气体透平机械的最新发展趋势；
This paper deals with the recent trends in turbomaohines handling gaseous fluid, such as compressors, blowers and fans, (hereinafter, they are abbr. to turbomacnines) in Japan.
容积式压缩机，真空泵和鼓风机。正误表。
Displacement compressors, vacuum pumps, and blowers; Erratum.
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