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tunnel tray dryer隧道盘式干燥机tunnelling effect[化] 隧道效应tunnel maintenance隧道维护tunneling cryotron隧道低温管tunneling blasting隧道掘进tunneling function打洞函数tunnel floor plate衬砌底板tunnel coefficient风洞系数tunnel under water水底隧道tunnel floor drain隧底排水管