名词
中文翻译：认证日期同义词
同义词：
['certification date', 'certification period']
例句：
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1. The company's date of certification is January 1st.
该公司的认证日期是1月1日。
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2. The new product will be certified by the end of this month.
新产品将在本月底获得认证。
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3. The certification process takes several months to complete.
认证过程需要几个月才能完成。