Solid iron flux bridges are inserted between the lagging tips of the main poles and the adjacent auxiliary poles without windings.

整体铁心磁桥连接主极的后极尖和相邻的不带线圈的横轴磁极；

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This conclusion provided a solid theoretical basis and the strong theoretical basis for the specifications formulation for fatigue design of highway steel Bridges.

这一结论为公路钢桥疲劳设计标准和规范的制定，奠定了坚实的理论基础，提供强有力的数据支撑。

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Make the effort to leave with a little style and you'll find that not only do you have a number of unburned bridges in place, but you also have some pretty solid relationships worth maintaining.

离开的时候尽量表现出一点风度，你会发现你不仅仅还有很多没烧掉的桥，你还有很多值得拥有的美好坚固的情谊。

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With sections of sand, solid rock and even worn-down bridges that drivers must inspect before crossing, the 200km road takes nearly 24 hours to drive.

BBC: Seven of the world��s riskiest roads

That includes bridges and roads, drinking water and wastewater pipelines, levees, power lines, solid waste systems, and a host of other things.

FORBES: 2012 is the Year America Must Get Serious About its Infrastructure