Air whether in the gaseous or liquid state is a fluid.
空气，无论是气态的或是液态的，都是一种流体。
Air whether in the gaseous or liquid state is a fluid.
空气，无论是气态的还是液态的，都是一种流体。
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.
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；
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