Its working principles, basically divided into gas pump and pump gastrapping two types.
按其工作原理，基本上分为气体输送泵和气体捕集泵两种类型。
2
According to their working principle is basically divided into the gas pump and gastrapping two types of pumps.
按其工作原理，基本上分为气体输送泵和气体捕集泵两种类型。
3
Through the investigation, the gastrapping cavities on boiling surface are identified and a data set of the mouth diameters of gastrapping cavities is got.