单词	coltan
释义	coltan /ˈkɒltan / noun [mass noun] A dull metallic mineral which is a combination of columbite and tantalite and which is refined to produce tantalum.Thousands of Grauer's mountain gorillas, chimpanzees and elephants have been slaughtered for food by illegal miners searching for coltan, a mineral containing metals like tantalum and niobium, used in cellphones and computers.... With the cell phone industry booming, the park's resources and wildlife are under massive strain from miners seeking colombo-tantalite, also known as coltan or tantalum. But cell phones also include coltan, a mineral extracted in the deep forests of Congo in central Africa, home to the world's endangered lowland gorillas. Origin 1990s: from columbite + tantalite.
随便看	phylloscopine phyllosilicate phyllosome phyllosphere phyllostomatid phyllostomid phyllostomine phyllostomoid phyllotactic phyllotactical phyllotaxis phyllotaxy phylloxanthin phylloxanthine phylloxera phylloxeral phylloxera mite phylloxeran phylloxerated phylloxeric phyloanalysis phyloanalyst phyloanalytic phylogenesis phylogenetic

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