短語詞組短語hexavalent chromium plating 六價(jià)鉻電鍍hexavalent chromium reducing bacterium 六價(jià)鉻還原菌hexavalent chromium resistance 六價(jià)鉻抗性determination of hexavalent chromium 測(cè)定六價(jià)鉻hexavalent chromium -contamination 鉻污染hexavalent chromium ion 六價(jià)鉻離子hexavalent chromium reduction bacteria 六價(jià)鉻還原菌trivalent and hexavalent chromium 三價(jià)鉻和六價(jià)鉻hexavalent chromium electroplating 六價(jià)鉻電鍍 返回 hexavalent chromium