When calculating the wild loads acting on a railv ay bridge an eng ii eer assumes iiat thew ind will act in a horizontal direction.
当计算铁道桥梁上风荷载时，工程师假定风力沿水平方向作用。
When calculating the wild loads acting on a railv ay bridge an eng ii eer assumes iiat thew ind will act in a horizontal direction.
当计算铁道桥梁上风荷载时，工程师假定风力沿水平方向作用。
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