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1.The construction of this bridge requires special structural steel to ensure its strength and durability.
这座桥梁的建设需要使用特殊结构钢，以确保其强度和耐久性。
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2. The engineer designed the bridge with special structural steel to withstand heavy loads.
工程师设计了一座桥梁，使用了特殊结构钢来承受重载。
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3. The steel beams are made from special structural steel, which is stronger and more durable than traditional materials.
这些钢梁是由特殊结构钢制成的，比传统材料更坚固、更耐用。