The shaft drilled for the probe that made contact can be used to send them food, clean water and medicine. But rescue workers still have to decide how to bring back them to the surface.
The article further poses design thoughts of liquid charge pump which have not shaft seal contact.
进一步提出了轴封不接触泥浆灌注泵的设计思想。
3
The interference fit between various column casings and shaft is analyzed by using the virtual contact loading method, and concrete calculating method and program are presented.