| 单词 | manganese | 
| 释义 | manganese [`maŋ·gǝ´nēs]  CHEMISTRY A metallic element, symbol Mn, atomic weight 54.938, atomic number 25; a transition element whose properties fall between those of chromium and iron.  METALLURGY A hard, brittle, grayish-white metal used chiefly in making steel.  | 
	
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