The thinking in each chapter uses at most only elementary arithmetic, and sometimes not even that.
每一章的思考最多只使用了初级算术,有时甚至不需要用。
Three to five key points that you want to cover in each chapter.
列出每章你想涵盖的三至五个要点。
Meanwhile, the research in each chapter is classified as vertical uniform load cases and later wind load cases.
在各章节中,又具体根据两种主要荷载形式(竖向屋面均布荷载和水平风荷载)分别研究。
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