单词：expansion ratio
expansion ratio的用法和样例：
例句
- After analysis,we earn the conclusion that expansive force of Gypsum Breccia in complete expansion method is bigger than that in balance load method.试样密度与含水率对膏溶角砾岩轴向膨胀率起决定作用。
- Water has a variable coefficient of expansion.水的膨胀系数是可变的。
- The thermostat is based on the fact that different metals have different coefficients of expansion.恒温器是以不同的金属有不同的膨胀系数这一事实为根据的。
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