河流自净 | |
agric. | self-purification of stream |
eng.geol. | stream self-purification |
oil | stream's self-purification |
能力 | |
corp.gov. | qualifications |
sport. | ability; competence |
河流自净: 14 phrases in 4 subjects |
Agriculture | 1 |
Ecology | 1 |
Technology | 7 |
Water resources | 5 |