P122 Air will completely fill any container which it may be placed in. .
作者译：空气会充满可以充气的任何容器。 。
2
P122 steel has high thermal stability, can meet the requirements of high temperature and high pressure steam for 1000mw ultra supercritical units, but has poor weldability.
P 122钢具有较高的热稳定性，满足1000 MW超超临界机组高温高压蒸汽的要求，但是其可焊性较差。