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conversion of cropland to forest and grassland
释义
conversion of cropland to forest and grassland
Encyclopedia
农学
水土保持林草措施
释
conversion of cropland to forest and grassland
退耕还林还草
从保护和改善生态环境出发,将易造成严重水土流失的坡耕地、易造成严重土地荒漠化及生态地位重要且粮食产量低而不稳的耕地,有计划、分步骤地停止耕种,因地制宜地造林种草,恢复林草植被。
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bleached and dyed veneer
bleached hologram
bleached veneer
Bleach grey soils
bleaching
bleaching clay
bleaching out
bleaching powder
bleaching process control systems
bleaching with hypochlorite
bleaching with sodium chlorite
Bleak House
blear
bleed
bleeder
bleeding
bleeding after acupuncture
bleeding check valve
bleeding due to qi reversed flow
bleeding sap
bleeding time
bleed steam turbine
bleeker smoothbelly sardinella
BLEEX
blemish
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