隧道围岩分级 surrounding rock classification: 围岩分类tunnel surrounding rock: 隧道(洞)围岩; 隧道围岩; 隧道周围一定范围内surrounding rock: 围岩pressure of surrounding rock: 围岩压力stability of surrounding rock: 围岩稳定下载手机词典可随时随地查词查翻译