The particular theory character and basic structure had shaped in Axial Period of Huaxia-China culture.
这种特殊的理论品格和基本结构在华夏文明的“轴心时代”就已形成。
The blade pattern and sample structure of the axial fan are briefly introduced.
简介了轴流通风机叶片型线及样板结构。
The blade pattern and sample structure of the axial fan are briefly introduced.
简介了轴流通风机叶片型线及样板结构。
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