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 prediction隧道超前预报tunnel j unctions隧道结tunnel experiment风洞试验tunnel traversing隧道穿越tunneling laneway掘进巷道Tunnel greenhouse单栋温室tunnel of highway公路隧道tunnel conduction隧道导电tunnels and ports隧道码头tunnel form stern轴隧式船尾