The party was for the 50th anniversary of the bridge opening.

聚会是为了庆祝大桥开通50周年举行的。

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It is an important procedure of re-fill up at platform back in bridge opening.

桥涵的台背回填是一道至关重要的工序。

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Using the principle of dimensional analysis and the method of regression analysis, the formulas of determining the length of bridge opening were obtained.

应用量纲分析原理和回归分析的方法，提出了各类河段桥孔长度的计算公式。

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Over 4000 men formed the original bridge building team for its formal 1890 opening. 57 of these were killed in the process.

UNESCO: UK goes Forth at World Heritage Conference in Bonn

The winner will receive a tour of the bridge and also have a chance to operate the opening swing section.

BBC: Shoreham swing bridge nearing completion

In green architecture news, a New York architect has come up with a proposal to blanket the unsightly West Side Highway with air-cleaning ivy and dramatic waterfalls, while in Sarajevo, we saw the opening of the winding Festine Lente pedestrian bridge.

ENGADGET: Inhabitat's Week in Green: madder root batteries, sun-powered plane and the world's first fiber-optic solar cell