乔木（树高10-25m，胸径15-40cm）
Tree ((height10-25m, Diameter at breast height15-40cm
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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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材表细长槽棱
Process fusiform fissures long and thin 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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黄河中下游
Middium, lower reaches of Huanghe River
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长江以南各省区
Each province, region in south of Yangze River
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日本
Japan
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