排气阀门的关闭直接造成参与气泡振荡的气体质量的减少，第二气泡脉冲相对主脉冲明显减小。
When the exhaust valve is closed, the gas with the bubble oscillation reduces, causing the bubble impulse lower the pressure impulse obviously.
结果表明电子的透射系数随外环半长及两个气泡半周长的改变均做周期性振荡。
We found that the transmission of electrons oscillates periodically with the change of ring's half length or two bubbles' half circumferences.
随着声波频率的升高，空化气泡的初始半径取值区间越来越小，空化振荡也越来越弱。
With the increase of driving frequency, the initial radii range of cavitation bubbles decrease, and the oscillation intensity reduces.
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