Study on the Main Obstacles and Countermeasures to Building Energy-saving Promotion in Cangzhou City
SONG Xing-hai, XUE Feng-feng, LI Tong-dong, LIU Zi-yuan, YANG Kai
Journal of Hebei University of Water Resources and Electric Engineering . 2018, (1): 70 -72 .  DOI: 10.16046/j.cnki.issn1008-3782.2018.01.015