PET 1)聚对苯二甲酸乙二醇脂,英文全称:Polyethylene Terephthalate 2)正电子发射计算机断层扫描,英文全称:Positron Emission Tomography 3)性能鉴定试验,英文全称:Performance Evaluation TestCET 1)对外统一关税,英文全称:Common External Tariff 2)战斗工程牵引车,英文全称:Combat Engineer Tractor 3)中部欧洲时间,英文全称:Centcal Europear Time 4)已校正的发动机的测试,英文全称:Calibrated Engine Testing 5)召回情况小组,英文全称:Campaignable Events Team 6)大学英语考试,英文全称:College English Test