amelioration

短语词组

短语

• land amelioration 土地改良
• continuous amelioration 持续改进
• grassland amelioration 草地改良
• amelioration design 改进设计
• quality amelioration 质量改进
• amelioration operator 改进算子
• amelioration efficiency 改良效果
• amelioration degree 改善程度
• cultivational amelioration 耕作土壤改良
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