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1. Oxford American Dictionary

   lag

   • IPA[laɡ]

   美式

   • v.
     enclose or cover (a boiler, pipes, etc.) with material that provides heat insulation
   • n.
     the non-heat-conducting cover of a boiler, pipes, etc.; lagging.

   • verb: lag, 3rd person present: lags, gerund or present participle: lagging, past tense: lagged, past participle: lagged

   • noun: lag, plural noun: lags

2. • 釋義

   v.

   動詞

   • 1. enclose or cover (a boiler, pipes, etc.) with material that provides heat insulation a lagged hot-water tank

   n.

   名詞

   • 1. the non-heat-conducting cover of a boiler, pipes, etc.; lagging.