Three radial sawing patterns, sectorial radial sawing models of quarter timbers, trisected timbers and hexsected timbers are presented in this paper.
介
种径向下锯模型：四开法、开法和六开法。
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经济;;，直立;Three radial sawing patterns, sectorial radial sawing models of quarter timbers, trisected timbers and hexsected timbers are presented in this paper.
介种径向下锯模型：四开法、开法和六开法。
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