karst and underground river的意思|示意
美 / /
英 / /
喀斯特与地下河
karst and underground river的网络常见释义
溶洞 ...衬砌，涌水压力，溶洞，隧道监测 [gap=4224]Key words：secondary lining; waterinflow pressure; karst and underground river; monitoring ...