名词
中文翻译：Unknown
同义词：
['modulus', 'ratio', 'coefficient例句：1. The engineer used the modulus to calculate the stress in the beam.（工程师使用模量来计算梁中的应力。）']
例句：
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1. The engineer used the modulus to calculate the stress in the beam.
工程师使用模量来计算梁中的应力。
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2.The ratio of carbon to hydrogen in the fuel is crucial for the engine's efficiency.
燃料中碳与氢的比例对发动机的效率至关重要。
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3. The coefficient of friction between the two surfaces is a critical factor in understanding how they interact.
两个表面之间的摩擦系数是理解它们相互作用的关键因素。