This essay makes quantitative description, taking rectangular section beam and I-shape section beam as examples respectively, in order to eliminate the doubt of students.
本文分别以矩形截面梁和工字形截面梁为例对此问题进行定量描述，以此消除教学中学生的疑义。
LNG demand imported from other country in future is forecasted by adopting the method combining qualitative analysis with quantitative analysis in the forth section.
第四章采用定性与定量分析相结合的方法，预测我国LNG未来的进口量。
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