本论文主要研究空燃比控制中的两种关键传感器：热膜式空气质量流量传感器和宽带型废气氧传感器的动态性能。
Two kinds of key sensors, hot-film mass air flow (MAF) sensor and universal exhaust oxygen gas sensor, for the AFR control are fully studied in this paper.
介绍气力输送管道的变径设计方法和变径管道气力输送试验中压损、料气比、物料质量流量等间的关系。
A method of stepped-diameter design for pneumatic conveying pipelines, as well as relationship among pressure loss, ratio of material to air, and mass flow rate of materials etc.
质量浓度为5%的悬浮液在在整个质量流量范围内总是表现出比水好的冷却性能，它对应的是更低的壁面温度以及更好的传热系数。
The 5% suspension always shows better cooling performance than water with lower wall temperatures and enhanced heat transfer coefficient within the whole range of mass flow rates.
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