| 1. | Diamond drilling replaced percussion drilling .
金钻探取代了冲击钻探。 |
| 2. | Valuable deposits of oil have been found by drilling .
通过钻探发现很有开采价值的油层。 |
| 3. | After months of drilling , oil was found off the coast .
经数月钻探，在沿海找到了石油。 |
| 4. | This diagnosis has since been confirmed by deep-sea drilling .
这种特征后来为深海钻探所证实。 |
| 5. | Special drilling or adits outside orebody may be required .
可能要求在矿体外作专门钻探或坑探。 |
| 6. | The same principle was used in a method of drilling in oilfields .
油田的钻探方法采用了同样的原理。 |
| 7. | The discovery well was drilled in 1927 on the basis of magnetic and torsion-balance surveys .
其发现井是1927年根据磁力和扭称测量结果而钻探的。 |
| 8. | Subsequent drilling, which resulted in the discovery of oil, supported the telluric-current picture .
后来进行钻探，结果发现了石油，证明了大地电流图片是正确的。 |
| 9. | Exploration programmes are based on drilling for the stratiform deposits along projections of established trends .
勘探计划依靠钻探，钻探层状矿床沿着已知走向的延伸部分进行。 |
| 10. | Soil ; exploration by excavation and borings ; sampling
土壤.挖掘和钻探勘测与取样 |
