This paper researches the mix ratio of C55 concrete and construction technology of Xiaoshawan Bridge box girder, especially the influence of hill sand on concrete performances.

对小沙湾黄河大桥主桥箱梁C55混凝土配合比和施工工艺进行了研究，重点分析了山砂对混凝土性能的影响。

youdao

The long, narrow shelter is composed of three elements: white walls, a bridge, and a glass box, the latter facing towards the water and the nearby pier.

狭长的眺望台由三个元素组成：白墙、桥梁和玻璃亭。其中玻璃亭朝向大海和附近的码头。

youdao

The box isn't a router or a DHCP server or anything, it's just a bridge.

这个机器不是路由器，也不是DHCP服务器或者任何别的东西，它只是一个网桥。

youdao

The bridge involved was described as a small aluminium construction box frame structure, which was about 5m (16ft) long.

BBC: High Askew bridge collapse plunges men into river

On Saturday morning, police officers stopped and searched for a third day box trucks as they approached the George Washington Bridge, which links New Jersey with New York, as well as the Queens-Midtown Tunnel, the Holland Tunnel and the Verrazano-Narrows Bridge, connecting the boroughs of Staten Island and Brooklyn.

CNN: STORY HIGHLIGHTS

Dorgan also cited an in-depth study of the bridge's fatigue potential conducted from 2004 to 2007 that recommended two alternatives for the bridge's future -- to add steel plates to reinforce critical parts of the bridge or to conduct thorough inspections of the wells inside the box to determine whether there were cracks.

CNN: Bridge collapse probe focuses on unexplained shift