Fire-fighting ventilation pipeline mounting structure and mounting method thereof von SONG XIAOYU, SONG SHAOSHUAN, SHANG ERMENG, XU MEIQIN, WANG XIAOPING, ZHOU JUNJIE, XU WENYU, WANG XIAOYU, SONG SHANG, JI ZHITONG, CHEN LIJING, LI XUEMEI, ZHANG HOUFENG, SU HONGBO, WANG HUI

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Mounting structure and mounting method based on building fire-fighting spraying system von SONG XIAOYU, SONG SHAOSHUAN, SHANG ERMENG, XU MEIQIN, WANG XIAOPING, ZHOU JUNJIE, XU WENYU, WANG XIAOYU, SONG SHANG, JI ZHITONG, CHEN LIJING, LI XUEMEI, ZHANG HOUFENG, SU HONGBO, WANG HUI

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Based on energy -conserving high -efficient heat recovery system of vacuum precooling von SHANG ERMENG, MENG LEI, HE YANGYANG, YUAN HUI, XU WENYU, ZHU HONGXING, YU HAILONG, GAO XIAOYANG, LIU ENHAI, YUAN TIESUO, ZHOU SHAOLEI, XU YUANSHUAI, XU SENSEN

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Cogeneration of heat and power central heating system based on big difference in temperature heat exchanger of absorption formula group von YU HAILONG, LIU ENHAI, SHANG ERMENG, YUAN TIESUO, ZHOU SHAOLEI, XU YUANSHUAI, XU SENSEN, HE YANGYANG, YUAN HUI, XU WENYU, ZHU HONGXING

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