焊丝含铜量
welding wire containing copper content
烤烟铜含量
copper content of flue-cured tobacco
控制铜含量
control the content of copper
蓝矾中铜含量的测定
Mensuration of Cu2+ content in CuSO4·5H2O
铜含量测定
copper content measurement
土壤铜含量
soil copper concentration
soil Cu concentration
土壤有效铜含量
available copper content in soil
铜、锌含量
the contents of Cu and Zn
血清铜锌含量
serum copper zinc content