The Board of Directors of ASNT voted certifying only Level III personnel on a voluntary basis.董事会被推举认证的仅仅是在自愿基础上的III级人员.The system yesterday received the Union's CE mark , certifying that it meets consumer and healt...

v.（尤指书面）证明( certify的现在分词 )，发证书给…，证明（某人）患有精神病，颁发（或授予）专业合格证书...

certifying的音标：...