7 Yi Jiang, te al. Leakage and blockage detection in water network of district heating system, ASHRAE Trans., 1996, 102Pt 1.
7 Yi Jiang, te al. Leakage and blockage detection in water network of district heating system, ASHRAE Trans., 1996, 102Pt 1.
8贾晶，小区采暖热网调节和管理。[硕士论文]。北京：清华大学热能系，1992。