certifying的例句（certifying在句子中的用法）

• The grade and quality of standard material is important in the course of certifying standard solution. 标准溶液定值过程中,标准物质的等级和质量是确保标准溶液化学计量准确的关键.
• The system yesterday received the Union's CE mark , certifying that it meets consumer and health requirements. 该系统昨天得到了欧盟CE批准,确认其符合消费者利益与健康要求.
• 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.