 |
| |||
| 绳索钻 〔绳式顿钻〕钻具 | |||
| 钢绳冲击钻具; 冲击钻具 | |||
| 索钻钻具; 绳索钻钻具; 钢丝绳冲击钻钻具 | |||
| |||
| 顿钻钻具 | |||
| cable tool: 57 phrases in 5 subjects |
| Drilling | 8 |
| Engineering geology | 15 |
| Metallurgy | 1 |
| Oil / petroleum | 7 |
| Technology | 26 |
|
| |||
| 绳索钻 〔绳式顿钻〕钻具 | |||
| 钢绳冲击钻具; 冲击钻具 | |||
| 索钻钻具; 绳索钻钻具; 钢丝绳冲击钻钻具 | |||
| |||
| 顿钻钻具 | |||
| cable tool: 57 phrases in 5 subjects |
| Drilling | 8 |
| Engineering geology | 15 |
| Metallurgy | 1 |
| Oil / petroleum | 7 |
| Technology | 26 |