tunnel portal
短语词组
- tunnel branch portal in sandy 隧洞挂口
- orthonormal tunnel portal 正洞门
- facilities of tunnel portal 隧道洞口设施
- equipment of tunnel portal 隧道洞口设施
- tunnel portal section 东津水电站
- wing wall tunnel portal 翼墙式洞门;详细翻译
- tunnel portal frame 洞门框
- bench tunnel portal 台阶式洞门
- tunnel portal area 隧道入口范围 返回 tunnel portal