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qanat; underground water course | |||
emissarium; mole channel; subterranean river course |
地下水 道 : 39 phrases in 7 subjects |
Agriculture | 4 |
Animal husbandry | 1 |
Desert science | 3 |
Engineering geology | 4 |
French | 1 |
Hydroelectric power stations | 1 |
Technology | 25 |