...面又包含了历史古迹（Historic Monument）、历史遗址（HistoricSite）、历史园林（Historic Garden）、历史城镇（Historic Town）、历史街区和历史地段（HistoricDistrict／Historic site），而历史环境是对这五个方面的概括。
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This thesis is a study which probed into the regional development of Yunnan historic town.
本课题是关于云南历史城镇发展的区域性问题研究。
参考来源 - 云南历史城镇兴衰的区域性机制研究The second chapter analyzes the regional characteristics of spatial formation of historical town in Yunnan, and its geographical and historical environment background of taking form, and compares with the northern and southern historical cities .
第二章在前章研究的基础上分析云南历史城镇空间形态地域性特征，及其形成的地理环境背景和历史环境背景。 并与北方历史城市、江南历史城市作多方面比较理解。
参考来源 - 地域性特征的形成与演替·2,447,543篇论文数据，部分数据来源于NoteExpress
而与此同时，一些历史城镇的保护工作取得了巨大进展，有吸引力的景观得以保存。
But in some historical towns, great progress has been made in conservation and resulting many attractive townscapes.
它们的蓄水池阻止了河流的流动，于是经常会淹没城镇、农场和历史遗迹。
Their storage reservoirs stop the flow of rivers and often submerge towns, farms, and historic sites.
城镇、田园、历史考古遗迹被660公里（410英里）的大坝所淹没，而且受到人口、地理方面的威胁正逐步扩大。
Towns, fields and historical and archaeological sites have been submerged, just as pollution and geological threats have risen around the slopes around the 660-km (410-mile) reservoir.
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