重金属污染治理
Disposal of Heavy Metal Pollution
有色重金属冶炼炉
Smelting furnace for heavy nonferrous metal
有害重金属元素
Harmful heavy metal elements
无机重金属离子
Inorganic heavy metal ions
无机盐及重金属离子
inorganic salt and heavy metal ions
微量重金属元素
Trace elements of heave metals
trace heavy metal element
微合金化重轨钢
microalloying heavy rail steel
外源复合重金属污染土壤
Soil polluted by exogenous compound heavy metals