| 1. | We must therefore carefully husband the reserves of phosphate rock that are available for use as fertilizers .
因此我们必须注意节约适合用做肥料的磷矿石储备。 |
| 2. | Gf - aas determination of trace amounts of lead in phosphate ores
石墨炉原子吸收光谱法测定磷矿石中微量铅 |
| 3. | Phosphate rock and concentrate - methods of sampling and preparing sample
磷矿石和磷精矿采样与样品制备方法 |
| 4. | Phosphate rock and concentrate - determination of moisture content - cravimetric method
磷矿石和磷精矿中水分的测定重量法 |
| 5. | Phosphate rock and concentrate - determination of loss on ignition - gravimetric method
磷矿石和磷精矿中灼烧失量的测定重量法 |
| 6. | Phosphate rock and concentrate - determination of sulfur trioxide content - gravimetric method
磷矿石磷精矿中三氧化硫含量的测定重量法 |
| 7. | Phosphate rock and concentrate - determination of acid insoluble content - gravimetric method
磷矿石和磷精矿中酸不溶物含量的测定重量法 |
| 8. | Phosphate rock and concentrate - detrmination of fluorine content - specific ion electrode method
磷矿石和磷精矿中氟含量的测定离子选择性电极法 |
| 9. | Phosphate rock and concentrate - determination of silicon dioxide content - gravimetric and volumetric methods
磷矿石和磷精矿中二氧化硅含量的测定重量法容量法 |
| 10. | Phosphate rock and concentrate - determination of aluminum oxide content - volumetric and spectrophotometric methods
磷矿石和磷精矿中氧化铝含量的测定容量法和分光光度法 |
