1. The extracted ore was not dressed on the spot.
采来的矿石并不就地洗选。
2. Vacuum carbon thermal reduction of difficulty-dressed antimony oxide ore is theoretically discussed and the experimental results are shown in this peper.
对难选氧化锑矿的真空热还原作了理论上的分析，并报道了试验的结果。
dressed ore
3. Vacuum thermal reduction of DIFFICULTY-DRESSED antimony oxide ore
难选氧化锑矿的真空热还原
\u0039\u0031\u0031\u67E5\u8BE2\u00B7\u82F1\u8BED\u5355\u8BCD
4. The primary ore is dressed through crushing and washing, and the concentrate contains SiO_299.16% which is a super quality foundry sand.
原矿经破碎水洗法选矿后，精矿含SiO299.16%，质量达优质型砂。