Three radial sawing patterns, sectorial radial sawing models of quarter timbers, trisected timbers and hexsected timbers are presented in this paper.
介绍了
种径向下锯模型：四
法、法和六法。
词
想词
经济;Three radial sawing patterns, sectorial radial sawing models of quarter timbers, trisected timbers and hexsected timbers are presented in this paper.
介绍了种径向下锯模型：四法、法和六法。
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