The investigation on the halo structure of drip - line nuclei is one of the most important subjects and has attracted much attention both experimentally and theoretically . the halo nucleus is a weakly bound system , which has very peculiar properties 晕核是弱束缚系统，具有非常特殊的性质，最外层的价核子具有非常弥散的空间分布，通常采用核芯加晕核子的少体结构近似。
In this control system , the neuro - fuzzy controller integrated by neuron controller and fuzzy controller is used in the outside layer control loop , the pd controller is used in the inside control loop 这种方法将模糊控制器与神经元融合构成外层的神经元模糊控制器，它通过神经元学习来在线调整模糊控制器的规则。在内层控制回路上，采用pd控制器，构成神经元模糊- pd双层控制系统。
If code inside a nested class makes an unqualified reference to a programming element , visual basic searches for the element first in the nested class , then in its containing class , and so on out to the outermost containing element 如果嵌套类内部的代码建立了对编程元素的非限定性引用， visual basic将首先在该嵌套类中搜索该元素，然后在其包含类中搜索，一直向外直到最外层的包含元素。
Inside the hall of prayer for good harvest the pillars inside the hall all have a meaning : the four in the inner circle represent the four seasons of the year ; the 12 pillars in the middle circle represent 12 months of the year and the 12 pillars in the couter circle represent 12 time periods of the day . the leigong pillar under the center of the ceiling means the absolute power of the emperor 祈年殿是按“敬天礼神”的思想设计的，殿内立柱都有特定的寓意：里层4根井柱间的空间象征春夏秋冬四季中层12根朱红柱分割的空间象征一年的12个月外层的12根檐柱象征一天的12个时辰宝顶下的雷公柱象征皇帝的“一统天下” 。
The pillars inside the hall all have a meaning : the four in the inner circle represent the four seasons of the year ; the 12 pillars in the middle circle represent 12 months of the year and the 12 pillars in the couter circle represent 12 time periods of the day . the leigong pillar under the center of the ceiling means the absolute power of the emperor . temple of heaven appears on the following banknote 祈年殿是按“敬天礼神”的思想设计的，殿内立柱都有特定的寓意：里层4根井柱间的空间象徵春夏秋冬四季中层12根朱红柱分割的空间象徵一年的12个月外层的12根檐柱象徵一天的12个时辰宝顶下的雷公柱象徵皇帝的"一统天下" 。
The scientific man is interested in finding out the chemical composition of the inside and crust of the earth upon which he lives , the thickness of the atmosphere surrounding it , the quantity and nature of cosmic rays dashing about on the top layers of the atmosphere , the formation of its hills and rocks , and the law governing life in general 在科学方面，人类所想要发现的，就是他所居住的地球的内部和外层的化学成分，地球四周的空气的密度，那些在空气上层活动着的宇宙线的数量和性质，山与石的构成，以及统御着一般生命的定律。
The pillars inside the hall all have a meaning : the four in the inner circle represent the four seasons of the year ; the 12 pillars in the middle circle represent 12 months of the year and the 12 pillars in the couter circle represent 12 time periods of the day . the leigong pillar under the center of the ceiling means the absolute power of the emperor 祈年殿是按“敬天礼神”的思想设计的，殿内立柱都有特定的寓意：里层4根井柱间的空间象征春夏秋冬四季中层12根朱红柱分割的空间象征一年的12个月外层的12根檐柱象征一天的12个时辰宝顶下的雷公柱象征皇帝的“一统天下” 。
Both absolute difference and relative difference among per capita gdps of 14 cities ( prefectures ) increased year by year since 1990 - the absolute difference increased linearly - - and this increased tendency would n ' t change in short period . by counting the discrete and ratio between per capita gdp of every city ( prefectures ) and that of the total province , the relative development speed of every region and the industrial structure of every region , i think that the characteristic of the spatial structure of regional economic difference in hunan is that the area along the beijing - guangzhou railway line in the east of hunan developed fast , while the vast area in the west of hunan developed slowly , so the regional difference increased constantly . on the difference background between the east and the west of hunan , there is the difference between central region and fringe region , for one thing it shows ring difference , namely chang - zhu - tan internal ring , surrounding chang - zhu - tan medium ring , the outermost external ring , the most underdeveloped counties lie on the fringe and mountain regions in the west , south and east of hunan , for another it displays that the peripheral regions of 13 prefectural cities are more developed than the other 文章还建立了反映基础设施水平、经济发展水平、社会发展水平的23个主要指标构成的湖南省区域差异衡量指标体系，在此基础上，借助spss统计分析软件，运用主成分分析法，对湖南省14个市州经济发展综合水平的差异状况进行了研究，结果表明：长沙市的经济发展综合水平在14个市州中遥遥领先，反映了湖南省经济发展空间结构的“单极主导”特征；通过计算人均gdp的标准差和标准差系数，研究区域经济差异的总体水平及区域经济不平衡发展的演变趋势，发现90年代以来湖南省各市州人均gdp的绝对差异和相对差异都在逐年扩大，其中绝对差异随年份直线上升，且这种差异扩大的趋势在短期内难以改变；通过计算各市州人均gdp与全省人均gdp的离差和比率、各市州发展速度的差异及产业结构的差异，认为湖南省区域经济差异的空间特征是：湘东京广沿线地区基础较好，发展较快，湘西地区发展缓慢，地区差异不断扩大；通过以县为对象的差异研究发现在湘东湘西差异的大背景上还有核心区与边缘区的差异，它一方面表现为长株潭内层、围绕长株潭的中层、更远的外层的圈层差异特征，最落后的县分布于湘西、湘南、湘
