A.開式管網(wǎng) B.閉式管網(wǎng) C.熱水管網(wǎng) D.區(qū)域式管網(wǎng) E.蒸汽管網(wǎng)
A.統(tǒng)一式管網(wǎng) B.蒸汽管網(wǎng) C.枝狀管網(wǎng) D.區(qū)域式管網(wǎng) E.環(huán)狀管網(wǎng)
A.室溫調(diào)節(jié)熱負荷 B.工業(yè)用熱負荷 C.生活熱水熱負荷 D.民用熱負荷 E.生產(chǎn)用熱熱負荷