double glazed window

2007-06-02 8:26 pm

why double glazed windows are much more efficient in reducing heat loss than single glazed windows?

回答 (1)

2007-06-03 3:08 am

✔ 最佳答案

有air係兩塊glass中間
因為air係poor heat conductor
中間d air可以減少heat loss by conduction

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