hexavalent chromium六价铬
hexavalent chrome六价铬
hexavalent alcohol六元醇
hexavalent chromium plating六价铬电镀
hexavalent chromium reducing bacterium六价铬还原菌
hexavalent chromium resistance六价铬抗性
determination of hexavalent chromium测定六价铬
hexavalent chromium-contamination铬污染
hexavalent chrome reduction六价铬还原
ADJ（形容词） having a valency of six 六价的 (See also sexivalent) [chem]