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来源：雅诚德英语网
The optimum selection age of basic density was determined at 10 years, the juvenile-mature correlation in tracheid length was unstable.
所以，10龄被确定为基本密度的最佳选择年龄。管胞长度幼——熟龄相关不稳定。
The optimum selection age of basic density was determined at 10 years, the juvenile-mature correlation in tracheid length was unstable.
所以，10龄被确定为基本密度的最佳选择年龄。管胞长度幼——熟龄相关不稳定。