大乔木（树高>25m，胸径>40cm）
Big tree (height)>25m,Diameter at breast height>40cm
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树皮厚（皮厚10mm以上）
Bark thickness (thickness above 10mm)
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外皮深纵裂（裂口宽度与深度>10mm）
Outer bark deep longitudinal fissured
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内皮石细胞粒状
Stone cell of bark grains-like
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内皮石细胞径列条
Stone cell of inner bark longitudinal bark-like
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材表不整齐槽棱
Irregular process and fusiform fissures in log surface
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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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长江中下游
Middium, lower reaches of Yangze River
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中国华南
Southern China
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