当气体流量非常小的情况下，单个气泡内可以实现更多次数的放电，活性粒子数

When the gas flow is very small, more discharges can be achieved in a single bubble, and the proportion of active particles is higher. However, a large number of discharges will also bring about a thermal effect, heating the gas in the bubble. When the gas is heated, it expands faster on the basis of the previous one. After the bubbles leave the capillary tube, they are only affected by the buoyancy force in the water body, making a variable acceleration movement with increasing acceleration. Coupled with the thermal expansion caused by the temperature of the gas in the bubble, the acceleration is greater, and the time from the bubble generation to the escape from the liquid is significantly shorter. This time is the mass transfer time of the active particles. Therefore, changing the gas flow rate can affect the ratio of the number of gas active particles in the bubble and the mass transfer time.

When the gas flow is very small, more discharges can be achieved in a single bubble, with a higher proportion of active particles. But the number of discharges can also have a thermal effect, heating the gas in the bubbles. When the gas is heated, it accelerates expansion on a previous basis. Because the bubbles are removed from the capillary tube, they are only buoyancy in the water body, and the acceleration speed is increasing. Coupled with the thermal expansion caused by the temperature of the gas in the bubble, the acceleration is greater, and the time between the formation of the bubble and the escape from the liquid is significantly shorter. This time is the mass transfer time of the active particle. This changes the gas flow and can affect the proportion of the number of active particles in the bubble and the mass transfer time.

When the gas flow rate is very small, more discharge times can be achieved in a single bubble, and the proportion of active particles is higher. But more discharge times will also bring thermal effect, heating the gas in the bubble. When the gas is heated, it expands faster than before. Since the bubble is separated from the capillary, it is only affected by buoyancy in the water, and the acceleration becomes larger and larger. In addition, the thermal expansion caused by the gas temperature in the bubble increases the acceleration, so the time from bubble formation to bubble escape from the liquid becomes significantly shorter. This time is the mass transfer time of active particles. By changing the gas flow rate, the proportion of gas active particles in the bubble and the mass transfer time can be affected.<br>