The combination of heat and charge releases electrons, which accelerate through the tube and strike a positively charged electrode at the other end.
加热和充电的结合释放出电子， 电子通过真空管加速撞击到对面充满正电的电极上。
2
According to the specific circumstances of the project can also take charge of construction directly welded pipe, but must check a stainless steel tube joint can demand reinforcement.
依据工程的详细状况也可以采取主管上直接焊接支管的构造，但必需校核支不锈钢管衔接处能否需求补强。
3
What you're effectively doing with a PDE is repeatedly setting off a small charge of hi-explosive inside a metal tube.