And the experimental results indicated that the pressure fluctuant of cng engine was less than gasoline engine 通过比较各缸最大压力的变动系数,表明燃烧天然气的循环间波动小于燃烧汽油。
The comparison among each cylinder ' s quantity of inlet air was made using the average value of the max pressure of each cycle 通过比较各缸压力的最大平均值及其变动系数,分析了各缸的进气量差异。
The comparisons of combustion and fluctuant among each cylinder were made using the averaged value of the max pressure and the fluctuant coefficient of the max pressure 使用各缸最大燃烧压力的平均值和变动系数比较了各缸的工作情况和循环间变动。
At lease 30 cycle ' s pressure data of each cylinder were measured . these cycle ' s pressure of each cylinder were averaged by the program that we made and the fluctuant coefficient of pressure was calculated 对于采集到的至少30个循环各缸压力,使用自编的程序作了平均化处理,并计算了整个循环的压力变动系数。
4 . adopting changing coefficient research our country district industrial structure change direction to the industry , his conclusion is : the industrial structure that our country majority were economized the area constantly changes to seniorization 4 、采用对产业转换变动系数研究我国地区产业结构转换方向,其结论是:我国大多数省区的产业结构不断向高级化转化。