psia

1.treatment of pressure sore and nursing of urocle- psia;

压疮治疗和尿失禁护理；

2.Containers used for transporting liquid nitrogen at less than 25 psig (40 psia) pressure are UN/DOT authorized containers.

用运输压力小25psig(40psia)态氮容器是UN/DOT可容器。