不同中图分类号论文的回归模型表明，文摘字数随论文篇幅的变化率为0.021～0.044；

Regression model showed that the variation of abstract word number was 0.021 ~ 0.044 with thesis length.

youdao

不同中图分类号论文的回归模型表明，文摘字数随论文篇幅的变化率为0.021～0.044；

Regression model showed that the variation of abstract word number was 0.021 ~ 0.044 with thesis length.

youdao