This paper discusses the quality control of dike body earth material filling building in river and lakes.

阐述了江、河、湖堤防堤身土料填筑的质量控制。

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This oven is suited to industries like fine chemical engineering (e. g. catalyst), power battery material and rare earth material.

该炉可用于精细化工(例如催化剂)、电池材料、稀土材料等行业。

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Under this circumstance, the quality control is made for all the aspects such as planning, construction, site testing etc, so as to ensure the filling quality of the anti-seepage earth material.

针对上述情况，从规划、实施、现场检验等方面对质量加以控制，从而确保防渗土填筑的质量。

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Scientists at the Goddard Space Flight Center in Greenbelt,Maryland, found the substance glycine in material brought back to Earth from a comet.

VOA: special.2009.09.30

The story of how space scientists were able to recover the material and bring it back to Earth is just as exciting.

VOA: special.2009.09.30

Stardust then returned to Earth and released a special reentry capsule containing the material it had collected.

VOA: special.2009.09.30

The United States has shuttered the vast majority its rare earth mines and now imports over 90% of the rare earth material needed for both economic purposes as well as weaponry.

CENTERFORSECURITYPOLICY: Center For Security Policy

In 2006, Stardust is scheduled to become the first spacecraft to return to Earth with material from beyond the moon.

CNN: NASA's Stardust mission develops case of blurry vision

After launching the FireFly probes in 2015, the company seeks to launch a larger craft, named DragonFly, in 2016 which will be able to return between 30 to 60 kgs of material to Earth.

FORBES: Asteroid Mining Becoming More Of A Reality