The plus trees selection of Q. variabilis should use the small sample plot method and the standard is different in each region.
栓皮栎优树选择应采用小样地法，各地区选择标准不同。
By the statistical analysis method, the authors researched the growth model and cutting age of masson pine natural forest with the sample plot inventory data.
根据标准地调查资料，应用统计分析方法研究生长模型，并结合森林经营实际确定采伐年龄。
Type curve match analysis is the main method of modern well test interpretation, but the error of this method is unavoidable because of the limitation of the type curves in a sample plot.
图版拟合是现代试井分析的主要方法，由于图版上典型曲线分辨率的限制，使得典型曲线图版拟合分析不可避免地存在误差。
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