大乔木（树高>25m，胸径>40cm）
Big tree (height)>25m,Diameter at breast height>40cm
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树皮中等厚（皮厚5-10mm）
Bark thickness moderate (thickness 5-10mm)
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外皮纵裂（裂口宽度与深度5——10mm）
Outer bark longitudinal fissured
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内皮石细胞粒状
Stone cell of bark grains-like
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内皮石细胞环状
Stone cell of inner bark grains-like
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材表灯纱纹
Fine holes of “linen” in log surface
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中国东北、内蒙古
Northeast China. Inner Mongolia
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中国西北
Northwest China
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中国西南
Southwest China
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中国东南沿海
Southeast China
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日本
Japan
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中国华北
Northern China
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