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1. Thebowstring truss is atraditional method of supporting heavy objects.
弓形桁架是一种传统的支撑重物的方法。
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2. Theengineer used the bowstring truss to support the bridge during construction.
工程师使用弓形桁架在建设期间支撑桥梁。
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3. The bowstring trusswas designed to withstand high winds andearthquakes.
弓形桁架被设计来承受大风和地震。