Pennsylvania Educational Technology Corporation宾西法尼亚州的教育技术公司 Public Employers' Training Consortium公众的雇主训练财团 Animal in cabin (IATA codes)动物在机舱协代码 Pittsburgh Energy Technology Center (Department of Energy)匹兹堡的能源技术中心(能源部门) Petco Animal Supplies31动物供应 People for the Ethical Treatment of Chetwin“动物人道主义协会”的Chetwin