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.
该控制系统经在实际生产中应用表明：气体流量控制及混合比控制方便、可靠、精度高，大大提高和稳定了钢轨的焊接质量。
The control system is convenient, and of high reliability and precision. Its applying in production highly improved the welding quality of the steel rail.
建模结果表明，动态非线性模型比线性模型更为准确地描述了热膜(线)式空气质量流量传感器的动态特性。
The modeling results show that the nonlinear dynamic models are more accurate than the linear dynamic models to describe the sensor characteristics.
建模结果表明，动态非线性模型比线性模型更为准确地描述了热膜(线)式空气质量流量传感器的动态特性。
The modeling results show that the nonlinear dynamic models are more accurate than the linear dynamic models to describe the sensor characteristics.
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