Reasonable national dairy products management system to guarantee milk products' safety and quality, guarantee people health and essential safety.

合理的国家乳品安全监管体系对确保乳产品安全和质量、确保人民健康和安全至关重要。

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This article states the essential function of OPAC system in library, analyses the factors which infecting the quality of OPAC system, and brings out some ideas of improving the quality of the system.

文章简述了OPAC系统在图书馆的基本职能，分析了影响系统质量的种种因素并提出了改进系统质量的几点思考。

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The Ancillary Services (as) are essential measures to guarantee the quality of electrical power in power system, which makes the system to operate safely and economically.

辅助服务是满足电力系统的安全经济运行，保证一定的电能质量的必要措施。

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Providing an easy-to-use, yet powerful operating system with the ability to customize applications to suit individual needs is essential to providing a high-quality and rewarding wireless experience.

ENGADGET: J.D. Power: average smartphone satisfaction is up, fights are fierce for second place