名词
中文翻译：热膨胀
同义词：
['thermal expansion', 'thermal expansion of materials']
例句：
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1. The metal expands when it is heated.
金属在加热时会膨胀。
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2.The expansion of the material can affect its performance.
材料的膨胀会影响其性能。
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3. The expansion of the gas is a measure of its pressure.
气体的膨胀是其压力的度量。