Q. How will I recognize a real interstellar dust particle track if I see one?问：假如我看到了一个如何才能认出那就是星际尘埃的踪迹呢？
The results show that the TIM increases with the decrease of dust concentration and the increase of spray-air pressure a结果表明，最低着火温度随煤粉质量浓度的减小而升高，随喷吹压力和煤粉粒度的增大而升高。