| 1. | Remarkable progress had been made in the technique of drilling wells long before the earliest oil-wells .
远在最早的油井之前，钻井技术就已经取得了显著的进步。 |
| 2. | Disaster relief for the northwest , drilling wells to fight drought
西北部赈灾及挖井纾旱 |
| 3. | Disaster relief for the northwest , drilling wells to fight drought
西北部赈灾及挖井纾旱 |
| 4. | We all drill wells in this area
我们都在这个地区打井。 |
| 5. | Drilling wells to fight drought
西北部赈灾及挖井纾旱 |
| 6. | Steel filter pipes for drilled wells with screwed connection dn 100 to dn 500
钻井用钢过滤器.螺纹连接. dn100至dn500 |
| 7. | Often , water is pumped into specially drilled wells to dissolve the rock salt deposits
水经常抽入特别地凿岩机溶解沉积的岩盐。 |
| 8. | Steel filter pipes for drilled wells with slot perforation and fisching butt strap joint
带开槽搭接孔和鱼尾板连接的钻井用钢制滤管 |
| 9. | Steel filter pipes for drilled wells ; flanged connection , nw 500 to nw 1000 nominal diameter 500 to 1000
钻井用钢滤管.法兰连接.公称直径500至1000 |
| 10. | Steel filter pipes for drilled wells - part 4 : with tension proof socket joint ; dn 100 to dn 500
钻井用钢滤管.第4部分: dn 100至dn 500抗拉插接套管连 |
