名词
中文翻译：证书颁发者
同义词：
['certifying authority', 'certifier', 'certifying body']
例句：
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1. The company's certifier is responsible for verifying the authenticity of all products.
公司的认证员负责验证所有产品的真实性。
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2.The certifier has been appointed to oversee the quality control process.
认证员已被任命监督质量控制过程。
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3. The certifier will be required to provide a certificate of authenticity for each product sold.
认证员将被要求为每件售出的产品提供真实性证书。