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退耕还林还草工程
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退耕还林还草工程
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理学
退耕还林还草工程
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green for grain project in China
退耕还林还草工程
将水土流失严重的耕地,沙化、盐碱化、石化严重的土地以及产量低而不稳的耕地停止耕种,因地制宜地造林种草,恢复植被的工程项目。
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alpine meadow ecosystem
alpine meadow steppe
Alpine merino
Alpine orogenic belt
alpine sandy land
Alpine Scree Sparse Vegetation
alpine semi-shrubby desert
alpine skiing
alpine skiing field
alpine skiing giant slalom
Alpine skiing nations team event
alpine skiing of Winter Deaflympics Games
alpine skiing of Winter Special Olympics
Alpine skiing slalom
Alpine skiing super combined
alpine skiing super giant slalom
alpine soil
alpine steppe
alpine steppe ecosystem
Alpine steppe soil
Alpine Tundra
alpine tundra soil microbes
Alpine Vegetation
alpine vegetation region in Qinghai Tibet Plateau
Alport syndrome
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