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1. Oxford American Dictionary

   conservation

   • IPA[ˌkänsərˈvāSHən]

   美式

   • n.
     prevention of wasteful use of a resource；preservation, protection, or restoration of the natural environment and of wildlife

   • noun: conservation

2. • 釋義

   n.

   名詞

   • 1. prevention of wasteful use of a resource they launched a week-long campaign to promote energy conservation
   • ▪ preservation, protection, or restoration of the natural environment and of wildlife nature conservation
   • ▪ preservation and repair of archaeological, historical, and cultural sites and artifacts the artworks in the collection need indexing and conservation
   • 2. the principle by which the total value of a physical quantity or parameter (such as energy, mass, linear or angular momentum) remains constant in a system which is not subject to external influence.