cyanide e process氰化法
cyanide free process非氰化法
non-cyanide plating process无氰碱性锌电镀
conventional cyanide process however常规氰化
non-cyanide process非氰化法
cyanide process for metallurgy氰化物法冶金
damaging cyanide process破氰工艺
non cyanide process非氰化法
ammoniacal cyanide process氨氰法
N（名词） a process for recovering gold and silver from ores by treatment with a weak solution of sodium cyanide 氰化物法 (Also called cyaniding)