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森林与环境污染
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森林与环境污染
Encyclopedia
农学
森林与环境污染
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forests and environmental pollution
森林与环境污染
人类直接或间接地向森林环境排放超过其自净能力的物质或能量,从而使环境的质量降低,对人类的生存与发展、生态系统和财产造成不利影响的现象。
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railway launching vehicle
railway law
Railway Law of the People's Republic of China
railway level crossing signal
railway lines within station yard
railway location design
railway locomotive and rolling stock
railway luggage and parcel traffic
railway maintenance construction schedule
railway maintenance operation skylight
railway marketing
railway marshalling station
railway master data platform
railway material management
railway mileage
railway mobile communication system
Railway Nationalization
railway operation
railway over-zone feeding
railway passenger car
railway passenger service
railway passenger service information system
railway passenger station
railway passenger tariff
railway passenger traffic
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