She also included unfertilized plots as a scientific control.

她还把一些不施化肥的地块作为科学控制组。

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To establish a strong command system to strengthen coordination, scientific control, and strengthen responsibility and strict discipline.

要建立强有力的指挥系统，加强协调，科学调度，强化责任，严明纪律。

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During the period of construction, it is essential not only the right sense of quality but also the management with scientific control technology in the whole process.

施工期间，除了要树立正确的质量意识外，还要应用科学的控制技术对施工全过程进行管理。

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Hoover, who had worked as a professional engineer, championed scientific flood control.

FORBES: American Pyramids

The Secretary of Health and Human Services (Secretary), through the Director of the Centers for Disease Control and Prevention and other scientific agencies within the Department of Health and Human Services, shall conduct or sponsor research into the causes of gun violence and the ways to prevent it.

WHITEHOUSE: The White House

These public data resources, made openly available in machine-readable form, include a broad range of useful information from comparison data about different health insurance plans, to product recall data from the Food and Drug Administration, to epidemiological data from the Centers for Disease Control and Prevention, to scientific information from the National Institutes of Health, and much more.

WHITEHOUSE: Calling all Innovators: Demo @ the Next Health Datapalooza