Objective To improve the understanding of pneumocystis carinii pneumonia (PCP) and investigate the role of electron microscopicalexamination in the diagnosis of PCP.
目的提高对卡氏肺囊虫肺炎（PCP）的认识，探索电镜对卡氏肺囊虫肺炎的诊断意义以及预防PCP的方法。
2
The cause for corrosion-induced failure of inner cavity of pulsation vacuum sterilizer was analyzed through physical and chemical inspection, macroscopical and microscopicalexamination.