Well, you can think about the physics, actually. When I start this oscillation, I have a choice of two things.
你可以想想，物理有关的，事实上，当我开始振荡，我有两种选择。
I will let it swing one oscillation, and when it comes to a halt here, I will start the timer.
我让它，摇摆一个来回，当它停在这里，我将开始计时。
With reduced the concentration of hydrogen, the oscillation start critical equivalence ratio is higher and the maximum amplitude of thermoacoustic oscillation is larger.
随着氢气含量的减少，起振临界当量比变大，热声振荡的最大振幅变大。
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