Pipelines of copper - nickel - alloys - part 9 : general principles for radiographic testing 铜-镍合金管道.第9部分:透视检验总则
2.
Non - destructive testing - industrial radiographic film - part 1 : classification of film systems for industrial radiography ; german version en 584 - 1 : 2006 无损检验.透视检验用工业胶卷.第1部分:工业透视检验用