População Economicamente Ativa (Portuguese: Economically Active Population)População Economicamente Ativa (Portuguese: Economically Active Population) Preliminary Endangerment Assessment初步的濒危的评估 Preliminary Environmental Assessment初步的环境评估 Polyethyl Acrylate聚丙烯酸乙脂 Physical Education Association体育协会 Plastics Engineers Association塑料工程师协会 Professional Employees Association (Canada)专业人员协会(加拿大) Professional Engineer and Architect专业的工程师、建筑师 Performance Evaluation Audit绩效评估审计 Pulseless Electrical Activity无脉性电活动 Phenylethylaminen. [化]苯( 基) 乙胺 Pocket Ethernet Adapter袖珍以太网适配器 Preemptive Attack先发制人的攻击 Phosphoethanolaminen. 磷酸乙醇胺 Potentially Explosive Atmosphere可能引发的氛围