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.

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采用数理统计的方法对沥青混合料马歇尔稳定度与级配曲线特性的关系进行了研究。

In this paper, the relationship between Marshall stability and grading curve trait of asphalt mixture is studied based on mathematical statistic.

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提出了为清晰、稳定地获得高频下晶体管特性曲线、S参量以及具有晶体管个性的特征频率匹配参数的一种独特的新方法。

A unique new method is advanced for obtaining the transistor characteristic curves clearly and stably, s parameters and the frequency matching parameters with the transistor individuality.

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