The application of lead salt in the cyanide leaching operation can produce microcell in the surface of gold grain.
氰化作业中应用铅盐可在
粒表面形成微电池,对于
颗粒这原电池可促进的溶解。
The application of lead salt in the cyanide leaching operation can produce microcell in the surface of gold grain.
氰化作业中应用铅盐可在粒表面形成微电池,对于颗粒这原电池可促进的溶解。
The Constantinian gold solidus or nomisma remained the standard gold coin and maintained its proper weight, with little variation, till the eleventh century.
丁索里迪在无
改动情况下，保持
重直至十一世纪。
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