The leaching rate of gold is increased to 90% by ammonium thiosulfate,as against the 15% under the condition of cyanide leaching.是什么意思_The leaching rate of gold is increased to 90% by ammonium thiosulfate,as against the 15% under the condition of cyanide leaching.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句