| 1. | A . refined quartz sand and common quartz sand
一精制石英砂普通石英砂 |
| 2. | Quartz sand need three to four years to darkened completely
石英砂完全黑化需要3 4年的时间。 |
| 3. | Investigation on the damage of dust in quartz sand field in towns
乡镇石英砂生产行业粉尘危害调查 |
| 4. | Acid washed quartz sand for use in industry
工业用酸洗石英砂 |
| 5. | Quartz sand for sand control in oil , gas wells and water injection wells
油气水井防砂作业用石英砂 |
| 6. | Comprehensive exploitation amp; utilization project of quartz sand resources
石英砂资源综合开发利用方案实例 |
| 7. | Silica quartz sand microsilica fused silica fused quartz quartz tube crystal
石英硅石英砂熔融石英硅砂硅微粉 |
| 8. | Simultaneous determination of trace elements in quartz sand by icp - aes
法同时测定精对苯二甲酸中微量金属元素 |
| 9. | Comprehensive exploitation amp; amp; utilization project of quartz sand resources
石英砂资源综合开发利用方案实例 |
| 10. | Investigation on agglomerate mechanism of quartz sand ultra - fine comminution
石英砂超细粉碎的团聚机理与抑制方法的研究 |
