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product quality certification
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product quality certification
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product quality certification
产品质量认证
经认证机构确认并通过颁发认证证书和认证标志来证明某一产品符合相应标准和相应技术要求的活动。国际标准化组织(ISO)的定义是:由可以充分信任的第三方证实某一产品或服务符合特定标准或其他技术规范的活动。又称产品认证、合格认证。
随便看
power semiconductor device
power series
power series expansion
power series field
power series method
power series representation
power series ring
power series solution
power series space
power series statement
power set
power-set axiom
power-set functor
Powers factor
power shift gearbox
power source
power source, power supply
power spectra
power spectral density
power spectral density function
power spectral function
power spectral index
power spectrum
power spectrum density
power spectrum density estimation
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