经分析发现当应变足够大时，调和平均值法是一种简单快速的应变计算法。
After analysing, it is found that the harmonic mean method is a simple and quick method for strain calculation when the strain is great enough.
经分析发现当应变足够大时，调和平均值法是一种简单快速的应变计算法。
After analysing, it is found that the harmonic mean method is a simple and quick method for strain calculation when the strain is great enough.
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