Therefore, deeply investigating and analyzing the character of random noise in working area and its relation with working factor have practical implication to better guiding field data acquisition.
因此，深入地调查和分析工区内随机噪音的特征及其与施工因素的关系，对于更好地指导野外数据采集具有实际意义。
Based on a large amount of investigating data, the authors use cluster analysis method with ordered samples to set dividing standards for the growth rate of secondary forests rechange.
依据大量的调查资料，应用有序样本聚类方法，按林分类型、立地条件和林龄来确定次生林改造生长量划分标准；
This thesis obtains necessary data by literature consulting, cases investigating, and questionnaire granting, as well as studies with the operation of actual cases through many points of view.
本论文采用文献查阅、案例调研、发放问卷等方式获取必要的资料，通过多方面、多角度的分析，结合实际案例的操作进行研究。
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