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| 压头一流量曲线 | |||
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| 压头-流量曲线; 压头-排量曲线; 压头-容量曲线 | |||
| 扬程-流量曲线 | |||
| 水头-容量曲线 | |||
| 压头排量曲线; 水头一容量曲线 | |||
| head -capacity curve: 7 phrases in 4 subjects |
| Drilling | 1 |
| Ecology | 1 |
| Oil / petroleum | 2 |
| Technology | 3 |
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