名词
中文翻译：柔韧性比值
同义词：
['flexibility ratio', 'ductility index']
例句：
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1.The engineer used the ductility ratio to determine the optimal shape for the beam.
工程师使用柔韧性比值来确定梁的最佳形状。
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2.The new design incorporates a higher ductility ratio to improve structural integrity.
新设计采用了更高的柔韧性比值，以提高结构的完整性。
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3. The ductility ratio is an important factor in determining the strength and durability of materials.
柔韧性比值是决定材料强度和耐久性的重要因素。