短語詞組短語free from cyanide 光亮free hydrogen cyanide 遊離氰化氫cyanide free 無氰cyanide free extracting gold 無氰提金cyanide free zinc 無氰鍍鋅工藝cyanide free desorption 無氰解吸cyanide free process 非氰化法alkaline cyanide free zinc process 堿性非氰鍍鋅工藝cyanide -free technology 無氰工藝 返回 free cyanide