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世界灌溉排水史
释义
世界灌溉排水史
Encyclopedia
工学
世界灌溉排水史
释
history of irrigation and drainage in the world
世界灌溉排水史
人类利用河流和塘泊作为水源发展灌溉,并在河谷地区排干沼泽,开垦土地的发展史。
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Black Girl
black glazed
black-glazed ewer with highfired overglaze white-gray splashes(huaci)and two lugs
black glazed tea cup with tree leaf pattern
black-glazed with silver oil-drop marking
Black Glove Event
Black God, White Devil
black grunt
black hat hacker
Black Hawk
Black Hawk Down
blackhead seabream
black henbane
black hole
black hole accretion
black hole and thermal gauge theory
black hole binary
black hole dynamics
black hole entropy
black hole evaporation
black hole exploration
black hole information loss paradox
black hole neighbourhood
black hole radiation
black hole spin
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