combustion expansion ratio

基本解释

With the increasing of pressure of gas generator under less injector number and expansion ratio, combustion efficiency increase.
在喷嘴数目较少和扩张比较小时，增加燃气发生器工作压强补燃效率增加。
The effect of inlet size, inlet angle, dome height, primary nozzle expansion ratio and nozzle numbers on combustion efficiency were taken into account.
考虑了进气道尺寸、进气夹角、头部距离、一次喷嘴扩张比和喷嘴数目等结构因素对补燃室掺混与燃烧性能的影响。
Note that the compression ratios shown above reflect the expansion ratio, which is the ratio of the combustion chamber volumes when the piston is at Bottom dead centre and Top dead centre.
请注意，压缩比上述反映膨胀率，这是燃烧室的量的比例时，活塞的下死顶死中心，中心会显示。
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