... 长条基础 Strip foundation 带形灌溉 Strip irrigation 露天开采 Strip mining ...
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border strip irrigation 畦灌
Irrigation strip 带灌
strip checks irrigation 围畦灌溉
border strip flooding irrigation 分区漫灌
Discussion on After-irrigation-strip Construction 后浇带的施工探讨
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But just why ancient people created the Nazca Lines has been an enduring mystery: Some archaeologists have suggested it was an alien landing strip, a primitive sun calendar, or an irrigation system.
MSN: Peru's mysterious Nazca Lines form a labyrinth, says study
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