| 单词 | ferrous sulfide |
| 释义 | ferrous sulfidenoun : the monosulfide of iron FeS found in nature as pyrrhotite and as troilite, obtained as brown or black metallic masses by fusing iron and sulfur or as a black precipitate by adding an alkaline sulfide to the solution of a ferrous compound, and used chiefly in making hydrogen sulfide |
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