| 1. | Noise has always been the most troublesome problem in seismic prospecting .
噪声始终是地震勘探中最棘手的问题。 |
| 2. | In its essentials, the methods of seismic exploration appear quite simple .
在主体上，地震勘探方法似乎十分简单。 |
| 3. | Magnetic and gravity surveys were often run as a preliminary to seismic survey in earlier time .
磁力和应力勘探常常作为地震勘探的前奏在早些时候进行。 |
| 4. | Seismic surveys gave a geologic picture quite different from that indicated by the telluric current .
地震勘探提供的地质图件与大地电流的结果完全不相同。 |
| 5. | We shall also consider the two types of surface waves, rayleigh waves and love waves, most widely observed in seismic prospecting and earthquake seismology .
我们也要研究在地震勘探和天然地震中最经常观测到的两类面波--瑞利波和乐甫波。 |
| 6. | The safety code for operation of seismic drilling rig
地震勘探钻机作业安全规程 |
| 7. | Shell processing support format for land 3 - d surveys
陆上三维地震勘探辅助数据格式 |
| 8. | Safety regulations for seismic exploration blasting practices
地震勘探爆炸安全规程 |
| 9. | Labor quota for seismic prospecting with portable rig
人抬钻地震勘探劳动定额 |
| 10. | Labor quota for seismic prospecting with truck - mounted rig
车装钻地震勘探劳动定额 |
