So the Joule free expansion involves opening this valve and asking what happens when this gas moves into the other bulb or distributes between the two.
焦耳自由膨胀就是,打开阀门后的过程,气体从一个腔跑到另一个腔,并在它们之间平均分配。
2
Inside a fluorescent bulb, a tiny amount of mercury is heated until it turns into a gas that reacts with other gases to produce light.
萤光灯泡内有少量汞，其被加热后变成气态，与其他气体起反应形成光。
3
The bulb is sometimes filled with an inert gas which permits operation at a higher temperature.