2 كتب إلكترونية بواسطة Annabelle Harvie
Annabelle Harvie: Food Security
Discussions of food security usually focus on the question "Can we feed the world?" Providing enough food is a major challenge. To do so without unacceptable environmental impacts, so that …
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€352.06
Joseph A Meyer & Daniel M. Rodrigues: Rare Earth Elements in the U.S. and China
Rare earth elements (REE) are essential for a diverse and expanding array of high-technology applications. REE-containing magnets, metal alloys for batteries and light-weight structures, and phosphor …
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DRM
€207.99