The steel struture engineering work load of 2008 Olympic national gymnasium is big, and the steel usage and category are large. Many measures are adopted to ensure the material quality.

2008年北京奥运会的国家体育场工程钢结构工程量大，用钢量多，种类复杂，采取了多种措施保证钢材的质量。

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The report made seven recommendations to Network Rail, including changing the work load of operators, especially during engineering work.

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