对旋式轴流通风机 counter-rotating axial-flow fan ; contra-rotating axial- fl ow fan
对旋轴流式局部通风机 opposite whirling axial auxiliary fan
介绍了矿用对旋轴流式主通风机的在线监测和故障诊断系统。
On-line monitoring and trouble diagnosis system of counter-rotating type of axial fan for mine is introduced.
通过数值模拟手段，对一矿用对旋式轴流式通风机小流量工况内部流动进行了深入研究。
By means of numerical simulation, the research on inner-flow of mining contra-rotating axial flow fan working under low flow rate condition was made.
分析了开发设计者的包装方法，并对轴流式通风机与对旋式局部通风机作了比较和试验研究。
The packaging way of developer and designer is analyzed. Comparison and test research are carried out on axial fan and counter rotating local fan.
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