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store water and retain soil moisture
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store water and retain soil moisture
Encyclopedia
农学
农业水土工程
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store water and retain soil moisture
土壤蓄水保墒
通过耕、耙、耱、锄、压等一整套有效的土壤耕作措施,改善土壤耕层结构,从而更好地蓄纳雨水,尽量减少土壤蒸发和其他非生产性水分消耗,为作物生长发育和高产稳产创造一个水、肥、气、热相协调的土壤环境。
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International Convention for the Unification of Certain Rules Relating to the Limitation of the Liability of Owners of Sea-going Vessels
International Convention on Civil Liability for Bunker Oil Pollution Damage,2001
International Convention on Civil Liability for Oil Pollution Damage
international convention on civil liability for oil pollution damage
International Convention on Load Lines
International Convention on Maritime Liens and Mortgages
International Convention on Maritime Search and Rescue
International Convention on Oil Pollution Preparedness, Response and Co-operation,1990
International Convention on Salvage
International Convention on Standards of Training, Certification and Watch-keeping for Fishing Vessels Personnel, 1995
International Convention on Standards of Training,Certification and Watchkeeping for Seafarers
International Convention on the Arrest of Ships, 1999
International Convention on the Elimination of All Forms of Racial Discrimination
International Convention on the Establishment of an International Fund for Compensation for Oil Pollution Damage
International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families
International Convention on the Regulation of Whaling
International Convention on the Rights of Persons with Disabilities
International Convention on the Suppression and Punishment of the Crime Apartheid
International Convention on the Suppression and Punishment of the Crime of Apartheid
International Convention on Tonnage Measurement of Ships
International Convention Relating to Intervention On the High Seas in Cases of Oil Pollution Casualties
International Convention Relating to Intervention on the High Seas in Cases of Oil Pollution Casualties
International Convention relating to the Limitation of the Liability of Owners of Sea-Going Ships
international cooperation
international cooperation and exchange of archives
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