unlined electrolytic cell  无内衬电解槽

unlined galvanized iron pipe  无内搪层镀锌铁管

unlined hole  翻车机; 翻车架

Unlined ladle  无衬铁水包

unlined landfill  非密封性垃圾填埋

unlined speech  非线性音段

unlined tent  单帐篷

unlined tunnel  无衬砌隧道

unlined underground cavern  不衬砌地下洞室

a group of headrace tunnels  引水发电洞群

A group of multi-arch tunnels  连拱隧道群

Access tunnels  辅助坑道

adjacent multiple tunnels  紧邻多孔隧道

Adjacent tunnels  相邻隧道; 抗生育药物(KF950)

Alpine Tunnels  阿尔卑斯山隧道

bored excavation of shallow tunnels  浅埋暗挖

Bored tunnels  暗挖隧道

Boundary between deep and shallow tunnels  深、浅埋分界

Bridges and Tunnels  桥隧