The capital structure of the same industry and the differences among industries are very stable.
同一行业上市公司的资本结构具有稳定性，行业间差异也具有稳定性。
There are differences between the effects of human capital in different industries.
三次产业人力资本的作用存在差异。
There are differences between the effects of human capital in different industries.
三次产业人力资本的作用存在差异。
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