喷射混凝土支护技术在淠河总干渠青龙堰涵闸加固中的应用
분사혼응토지호기술재비하총간거청룡언함갑가고중적응용
Application of spray concrete timbering technique in Qinglongyan sluice enhancement at main canal of the Pishihang Irrigation Area
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