About energy economization, mainly introduced how new technologies and methods are used in utilizing of hydraulic head, decreasing pressure and quantity, setting of fire-fighting system, water pump, supplying of hot water etc.
英
美
- 關(guān)于節能，主要介紹了在給水管網(wǎng)水頭的利用方面，減壓節流問(wèn)題方面，生活與消防系統設置方面，水泵方面，開(kāi)水供應方面的節能新方法、新技術(shù)。
