development exploitation and integrated recovery of difficult gold ores and difficult gold tailings in gold mines by adopting new roasting technique hot-pressure pre-oxidization and cyanidation gold extraction technique and bacteria-oxidization and cyanidation gold extraction technique
采用新型焙烧技术、热压预氧化氰化提金技术和细菌氧化氰化提金技术，开发、开发和综合回收金矿难选金矿石和难选金尾矿
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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