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1.The new building has a retractable steel joist system that allows for easy adjustments during construction.
这座新建筑采用了可伸缩的钢梁系统，便于施工过程中的调整。
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2. The engineer designed the structure to withstand high winds and earthquakes, using retractable steel joists to reinforce the building's stability.
工程师设计了这栋建筑，以承受强风和地震，使用可伸缩的钢梁来加固建筑的稳定性。
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3. The architect used this innovative design to create a modern yet sturdy structure, incorporating retractable steel joists to enhance structural integrity.
建筑师采用了这种创新的设计，创建了一个现代而坚固的结构，并使用了可伸缩的钢梁来增强结构的完整性。