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1. Oxford American Dictionary

   ring circuit

   • IPA[riNG ˈsərkət]

   美式

   • n.
     an electric circuit serving a number of outlets, with one circuit breaker in the supply.

   • noun: ring circuit, plural noun: ring circuits

2. • 更多解釋

   ring circuit

   英式

   • n.
     an electric circuit serving a number of power points, with one circuit breaker in the supply.

   Oxford Dictionary