以下为句子列表：
英文: The variable parameter taper equation was built with diameter determination datas of different parts of Cryptomeria fortunei plantation sample wood, in combination with the relative tree height curve mode and other assistant equations, volume table of C.
中文: 摘要利用柳杉人工林样木各部位直径测定数据，建立可变参数削度方程，配合威布尔分布函数、相对树高曲线模型及其他辅助方程，编制了柳杉人工林林分出材率表，为生产应用提供科学依据。
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英文: This article uses fixation swatch founding for second-class investigation to obtain character of 207 sample trees, by which mathematics model of ground diameter volume table of Chinese Fir were deduced by regressing and imitating with five of equations re
中文: 摘要利用二类调查布设的固定样地，收集207株样木调查资料，分别采用5个方程进行回归拟合，选出杉木人工林地径材积表的方程模型，利用一元材积表和二元材积表导算编制一元地径材积表，并进行比较，结果表明二元材积表导算地径材积表的方法精度较高，基本满足林业生产所需精度要求，可以提供林业生产服务。
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