Black tin

Black tin is the raw ore of tin, usually cassiterite, as sold by a tin mine to a smelting company. After mining, the ore has to be concentrated by a number of processes to reduce the amount of gangue it contains before it can be sold. It contrasts with white tin, which is the refined, metallic tin produced after smelting.

单词	Black Tin
释义	Black Tin 英语百科 Black tin Black tin is the raw ore of tin, usually cassiterite, as sold by a tin mine to a smelting company. After mining, the ore has to be concentrated by a number of processes to reduce the amount of gangue it contains before it can be sold. It contrasts with white tin, which is the refined, metallic tin produced after smelting.
随便看	NTST NTSTP NTS Transdermal System n.t.t NTT NTTAWWT NTTC NTT digital circuit NTT DoCoMo NTTF NT, the NTT motif NTTP NTTPC NTU ntubation dacryocystography Ntui ntumba ntundu Ntungamo ntu oil shale retorting process NTUP Ntuple n tuple n tupling

Black Tin

Black tin