Agencies for testing the quality and safety of agricultural products shall be subject to metrological accreditation in accordance with law.

农产品质量安全检测机构应当依法经计量认证合格。

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Therefore, it is the current need for producers and users to find out a method for testing the quality of CCDs.

因此，寻找方便实用的检测CCD成像质量的手段，成为CCD的生产者和使用者的当前需要。

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Disc-brake test rig is testing the quality and performance of the brake equipment manufacturers, is the indispensable important experiment device of the brake company.

盘式制动器检测试验台是检测制动器质量和性能的设备，是制动器生产厂家不可或缺的重要实验装置。

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and improve the quality of human life to the extent possible without using animal testing.

以及提高人类的生活质量。

需要动物实验吗？ - SpeakingMax英语口语达人

Facebook also looks to be testing the quality, size and positioning of images on the news feed, which was just redesigned this week.

FORBES: Google+ Gets A Jump On Facebook

Open source projects require the writing of code, sure, but also developing documentation and training methods, managing and researching communities of users, testing the quality of existing code and designing the interfaces and interactions of user experience.

FORBES: The Knowledge Revolution Is Not About Big Data, It's About Well-Connected Little Data

For decades, research has confirmed that the big factor in determining how much students learn is not class size or the extent of standardized testing but the quality of their teachers.

NEWYORKER: Personal Best