Tunnels, being one of the transport means passing through rivers, lakes and seas more rapidly and safely, have such advantages as being unaffected by adverse climate, rain and winds, waves and currents, ice packs and heavy fogs.

• 隧道作为一种更加便捷、安全的穿越江、河、湖、海的交通工程之一 ,有不受外界气候、风雨、波浪、水流、冰凌、大雾等因素影响的诸多优势。