sodium sulfide
sodium-sulfide的词性:n.(名词)
1. A hygroscopic yellow compound, Na2S, used as a metal ore reagent and in photography, engraving, and printing. 硫化钠:一种吸湿的黄色化合物,Na2S,用作金属矿石的试剂,以及用于摄影、雕刻和印刷