得出了二甲醚火焰传播速度与一次空气系数的关系曲线，并且在一次空气系数约为0。
The curve of relationship between flame speeds and the primary air ratio is got, and when primary air ratio is about 0.
通过自相关系数测量火焰涡团的特征反应时间，结果表明：相同的燃气流量下，特征反应时间与射流速度成反比；
The time scale is obtained through the self correlation coefficient of the sound wave. It is clear that the time scale is inverse ratio to the jet velocity under the same gas velocity.
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