扭曲的铁梁都仍然存在这个剧院建筑，位于800米从地面为零。
Twisted iron girders are all that remain of this theatre building located about 800 meters from ground zero.
平均剑身长达三英尺，剑体焊接精良，整个剑的主梁与剑刃由尖端的冶炼工艺锤锻而成，钢与铁按照完美的比例整合一体。
Averaging about three feet, blades were pattern welded, a sophisticated technique by which twisted rods and strips of iron or steel were hammered together.
本文讨论受到多频率约束的铁木森柯梁和尤拉梁的最小重量设计问题。
The present paper discusses the minimum weight design problem for Timoshenko and Euler beams subjected to multifrequency constraints.
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