With a small storage area, P8 creates a 2-level deep (23x23) directory structure with 529 directories at the leaf level.
对于小型存储区域，P 8创建一个2级深度(23x23)的目录结构，其中在叶子级有529个目录。
Conclusion: This study model may be useful for various population level of data and materials in small area, also for analysis of risk factor of other rare disease such as other tumor.
结论：集合数据分析模型可用于小地域的各种群体水平的数据分析，及其它肿瘤等少见病的危险因素研究。
Qiaokou area in Dongpu depression with an exploration and development history over 30 years has a high average exploration level while small proved reserves.
东濮凹陷桥口地区已有30多年的勘探开发历史，平均勘探程度较高，但探明储量的程度较低。
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