tunnelingn.掘进；开挖隧道；遂道工程；隧穿动词tunnel的现在分词形式.tunneln.隧道；地道；洞穴v.挖地道；挖隧道Tunneling protocol隧道协议tunnel measurement风洞测量tunneling formwork隧道模板tunnel destruction巷道破坏tunnel-type tray槽形泡帽塔盘tunnel middle wall隧道中墙tunnel ling effect隧道效应tunnel's rock maastunnelling process掘进过程tunnelling current隧道效应电流