tunnelern.隧道掘进机tunneln.隧道；地道；洞穴v.挖地道；挖隧道tunnel - mode隧道模式Tunneladder TWT沟道梯型结构行波管tunnel pressure隧道压力tunneled tunnel暗挖隧道tunnel radiator隧道式冷却器tunnel grouting隧洞灌浆tunneling sight隧道目光tunnel collapse隧道塌方tunneling speed掘进速度tunnel location隧道定线