对开: run from opposite directions ...本: I stem or root of plants对开本的书: book made of sheets folded in this way页码,对开本: folio一册对开本的书: a folio volume开本: [印刷] format; book size 八开本 octavo; 三十二开本 32 mo; 十六开本 16 mo 对开: 1.(相向开行) (of trains, buses or ships) run from opposite directions2.(对半分配) divide into two halves; go fifty-fifty3.[印刷] (整张纸的二分之一) folio◇对开本 folio16开本: sextldecimo64开本: sixtyfourmo八开本: octavo电开本: to open by cable六开本: sexto四开本: quarto信开本: to open by airmail对开版: folio edition对开驳: split barge对开材: split对开槽: cross notching; cross-notching对开的: dimidiate对开管: center split pipe; split duct; splitpipe对开环: split collar对开门: bifold对开模: split cavity; splitmould对开木: half log对开式: bi-parting