conservations
英[kɒnsə'veɪʃnz]
美[kɒnsə'veɪʃnz]
- 保护区
详细释义
名词 conservation:
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an occurrence of improvement by virtue of preventing loss or injury or other change
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the preservation and careful management of the environment and of natural resources
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(physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations
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