日本大学生産工学部　研究報告A（理工系）第52巻第1号

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─ 20 ─Fig.36　Flat Gong 11 on south side of east wallFig.33　Flat Gong 8 on south side of east wallFig. 37　Flat Gong 12 on south side of east wallFig.34　Flat Gong 9 on south side of east wallFig. 38　Flat Gong 13 on south side of east wallFig.35　Flat Gong 10 on south side of east wall