8. Placer tin deposit in xupu occurs in alluvial sediment of quatemary system and cassiterite chiefly concentrates at the bottom of gravel layers.
溆浦砂锡矿床赋存在第四系冲积层中锡石主要富集在底部砂砾石层。
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9. Placer tin deposit in Xupu occurs in alluvial sediment of Quatemary SyStem and CaSSiterite chiefly concentrates at the bottom of Gravel layers.
溆浦砂锡矿床赋存在第四系冲积层中，锡石主要富集在底部砂砾石层。
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10. In order to recover cassiterite by gravity separation, it is necessary to separate sulphide minerals from the Dachang cassiterite ores by coarse preferential flotation.
为了用重选法回收锡石，大厂锡矿需先用粗粒优先浮出硫化矿石，但分选比较困难。
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11. The major minerals like beryl, scheelite and cassiterite have relatively complicated chemical composition and remarkable isomorphism, which enables them to have typomorphic significance.
绿柱石、白钨矿和锡石色彩绚丽，其成分较为复杂，类质同象现象普遍，晶体形貌具有标型意义。
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12. The results indicate that collector composed of SHA and P86 is suitable for the flotation of cassiterite ; the other composite collectors are not suitable for the flotation of cassiterite .
水杨氧肟酸与P86药剂组合适宜于浮选细粒锡石，而其它药剂组合则效果不理想。
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13. The idea of using a different kind of mineral as carrier and smelting method to separate carrier from fine cassiterite particles, adopted in this paper, are feasible and satisfactory results achieved.
文章提出了微细粒载体浮选中采用异类矿物做载体及并用冶炼方法解决其分离的设想，并取得了良好的结果。
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14. The idea of using a different kind of mineral as carrier and smelting method to separate carrier from fine cassiterite particles, adopted in this paper, are feasible and satisfactory results achieved.
文章提出了微细粒载体浮选中采用异类矿物做载体及并用冶炼方法解决其分离的设想，并取得了良好的结果。
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用作名词 (n.)
Cassiterite has been an important tin ore for eons and is still the greatest source of tin today. 锡石作为一种重要的锡矿石已有数十亿年的历史，时至今日仍然是锡的重要来源。
