central heating
noun [ U ] uk/ˌsen.trəl ˈhiː.tɪŋ/ us/ˌsen.trəl ˈhiː.t̬ɪŋ/
B1 中央供暖系统,集中供热系统
a system of heating buildings by warming air or water at one place and then sending it to different rooms in pipes
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