简要论述局部扇风机（轴流式通风机）产生不稳定工况的原因和变化规律，提出以分流器消除风机特性曲线驼峰区段、使其工作运行稳定的技术措施。
The technical measures are given out by which the hump zone of characteristic curve of the local fan can be eliminated using a current divider and the operaiting stability of the fan can be improved.
对矿井开采中采用的局部扇风机进行泄压通风的技术作了介绍。
This paper introduces the decompression ventilation technique with local fans in the excavation of the mine.
阐述了局部通风机噪声的分类，产生这些噪声的原因，以及综合控制、减小这些噪声的方法。
The fan-noise is classified according to the noisy source, some of the schemes of noise integration control and reduction are puts forward in this paper.
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