1) hard-to-open concentrate
难分难精矿<冶>
2) refractory gold concentrate
难浸金精矿
1.
Experimental research on heap leaching bio-oxidation cyanidation of refractory gold concentrate;
某难浸金精矿堆浸细菌氧化—氰化浸出试验研究
2.
Study on bacterial pre-oxidation of pyrite inclusion type of refractory gold concentrate;
黄铁矿包裹型难浸金精矿的细菌预氧化工艺研究
3.
Study on the technology of bacterial pre-oxidation of a certain refractory gold concentrate;
某难浸金精矿细菌预氧化工艺研究
3) Difficult-to-filter iron concentrates
难滤铁精矿
4) Refractory concentrates
难处理精矿
5) refractory gold ore
难选冶金矿石
1.
Gold can be recovered from refractory gold ore at Xingshuping, north-west by oxide roast-leaching with sulfuric acid+ calcium hypochlorite.
采用氧化焙烧 硫酸+次氯酸钙浸出工艺可从西北杏树坪地区的难选冶金矿石中回收金。
2.
By roasting mill head,then cyanide leaching the roasted ore to treat the refractory gold ores of Lufeng Gold Mine,the gold recovery rate came to 80% and the synthetic cost of ore dressing was 70$/t with better technical index and economic benefi
采用原矿焙烧—焙砂氰化浸出工艺处理鹿峰金矿难选冶金矿石 ,金的回收率达80 % ,选矿吨矿综合成本为 70元左右 ,技术指标较好 ,经济效益显著。
6) arsenical refractory gold ore
含砷难冶金矿
1.
Studies of pretreatment of arsenical refractory gold ore with pressure oxidation process;
加压氧化法预处理含砷难冶金矿的研究
补充资料：难夫难妻(难ｎàｎ)
一名《洞房花烛》。故事片。亚细亚影戏公司1913年摄制。郑正秋编剧，张石川、郑正秋导演。一对素不相识的青年男女，经媒婆撮合拜堂成亲，在封建礼教桎梏下开始艰难的夫妻生活。为中国第一部故事片。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条