保存( conservation的名词复数 )；保护；避免浪费；对自然环境的保护
同义词：preservation
the preservation and careful management of the environment and of natural resources(physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformationsenergy conservation能量守恒；能源节约
water conservation节约用水，水源保护；水利
soil conservation土壤保持
water and soil conservation水土保持
resource conservation资源保护；资源保育
conservation of energy[物]能量守恒（定律）
conservation law守恒律
environmental conservation环境保护
mass conservation质量守恒；质量不变
conservation tillage水土保持耕作；保护耕作，保育耕作
momentum conservation动量守恒
conservation area保护区
conservation of mass质量守恒；质量守恒定律
conservation equation守恒方程
wildlife conservation野生生物保护
nature conservation自然保护；自然保育；自然保持
conservation biology保护生物学
conservation of momentum动量守恒；动量不变原理
forest conservation森林保护
world conservation union世界自然保护联盟；世界自然保育联合会
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