| 1. | Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid .
表明笔石详细构造的物质是利用氢氟酸从石灰岩中侵蚀出来。 |
| 2. | Kerogen analyses, however, require preliminary isolation of the kerogen by hydrochloric and hydrofluoric destruction of the inorganic minerals .
但是，油母岩分析需要使用盐酸和氢氟酸破坏无机物以便初步分离出油母岩。 |
| 3. | Subject to mild attack by aqua and or hydrofluoric acid
在王水和氢氟酸中稍有腐蚀 |
| 4. | Hf acid detecting paint to ensure valve integrity
用于保证阀门完整性的氢氟酸检测漆。 |
| 5. | Hf acid detecting paint to ensure valve sealing integrity
氢氟酸检测漆，用于保证密封的整体性。 |
| 6. | The grarvimetric method for the determination of silicon dioxide content
氢氟酸重量法测定二氧化硅量 |
| 7. | Chemical reagents . hydrofluoric acid
化学试剂氢氟酸 |
| 8. | Aqueous hydrofluoric acid for industrial use . sampling and methods of test
工业用含水氢氟酸.取样和试验方法 |
| 9. | A case of hydrofluoric acid poisoning treated by venous injecting of calcium gluconate
静脉补钙抢救氢氟酸中毒1例报告 |
| 10. | Silica refractories - determination of silicon dioxide content - hydrofluoric acid gravimetric method
氢氟酸重量法测定二氧化硅量 |
