This article introduces the design features, pneumatic design of explosion-proof contra-rotating axial fan, and the design, manufacture of fitted motor and the safety measures.
文章综述了煤矿用防爆对旋轴流风机的设计特点、气动设计、配套用电机设计以及加工制造和保证安全可靠的措施。
The relationship is also put to the proof by Fan Ye, the writer of the History of the Late Han Dynasty.
这一关系，在《后汉书》的著者范晔那儿也能得到证实。
Three kinds of leakage proof measures for coal dust fan are introduced.
介绍了煤粉风机的三种防泄漏措施。
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