The leaf area increased 5 and 3 fold in the closed and diffusive conditions, respectively.
叶面积在封闭和通气条件下分别增加了5倍和3倍。
The whole book was evenly fold into rectangle form so it can be opened and closed like a folding fan.
全书按照特定行数，均匀地折叠成长方形折子，可象扇子样开启或折叠，从中反映我国书籍装帧之精妙。
The whole book was evenly fold into rectangle form so it can be opened and closed like a folding fan.
全书按照特定行数，均匀地折叠成长方形折子，可象扇子样开启或折叠，从中反映我国书籍装帧之精妙。
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