new variable
| instantaneous unit hydrograph
| new variable | |
| tech. | 新变量 |
| instantaneous unit hydrograph | |
| hydroel.st. | 瞬时单位线; 瞬时单位 线 |
| tech. | 瞬时单位水过程线 |
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| 新变量 | |||
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new variable : 4 phrases in 3 subjects |
| Business | 1 |
| Earth sciences | 1 |
| Technology | 2 |