drawdown-time
| superimposed line method
| drawdown time | |
| dril. | 液面下降时间; 压力下降时间 |
| superimposed line method | |
| tech. | 配线法 |
| |||
| 液面下降时间; 压力下降时间 | |||
|
drawdown-time : 18 phrases in 5 subjects |
| Desert science | 1 |
| Engineering geology | 1 |
| General | 1 |
| Mining | 1 |
| Technology | 14 |