tunnel portal meaning in English
隧道洞口（洞门）
隧道洞门
隧道口
隧道入口
隧洞口
Examples
- Application of soil nailing in tunnel portal excavation
土钉支护在隧道洞门开挖中的应用 - Numerical simulation of exhaust gas convective diffusion from a tunnel portal
隧道峒口废气对流扩散的数值研究 - Study on the controlling method of exhaust gas diffusion from a tunnel portal
隧道峒口污染物扩散控制方案的研究 - Tunnel portal tsing yi east
隧道出入口青衣西 - Design of tunnel portal section with large span in complicated terrain and geology area
地质情况下大跨度隧道洞口段设计