truss

1. But the eastern truss bridge and causeway would eventually have to come down .

但东部的桁架桥及公路最终将不得不倒塌下来。

2. It took 35 days to assemble the first truss , 10 days for the second one and 1 day for the third one .

工人们花了35天组装第一根桁架，第二根用了10天，第三根只用1天。

3. The project also included a tunnel to logan airport as well as a cable-stayed bridge to replace the double-decker truss bridge over the charles river .

该项目还包括一条洛根机场隧道和一个取代查尔斯河上的双层桁架桥的斜拉索桥。

4. The international space station is equipped with two independent cooling systems , or coolant loops , mounted on the lab 's main solar power truss .

国际空间站装备了两个独立的制冷或冷却剂循环系统，位于空间实验室的主太阳能电池桁架上。

5. Inventions photograph by bell collection inventor and early national geographic society president alexander graham bell created this tetrahedral truss kite , designed with three-dimensional triangles that could support considerable weight , in order to study aerodynamic design before attempting to build airplanes .

发明家、早期美国国家地理学会主席亚历山大贝尔制作了这个四面体桁架风筝，利用了立体三角形可以支持相当大的重量的特性，旨在研究空气动力设计，然后试图制造飞机。

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