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1. Oxford Dictionary

   gravity-fed

   • IPA[ˈɡravɪtɪˌfɛd]

   英式

   • adj.
     making use of gravity to maintain the flow of material through a supply system
2. • 釋義

   adj.

   形容詞

   • 1. making use of gravity to maintain the flow of material through a supply system gravity-fed irrigation systems