The physical and mechanical properties of middle cutting wood of Cunninghamia lanceolata are inferior to those from natural forests.

杉木中伐材的物理力学性能不如天然林中伐材。

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The results show that the physical and mechanical properties of middle cutting wood of Cunninghamia lanceolata are inferior to those from natural forest.

结果表明：杉间材物理力学性质较天然林差。为杉木的定向培育。

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