通过压缩数据维的方式，研究城市建筑用地信息准确提取的原理和方法。
Based on a data dimension compression technique, this paper studies the principles and method of remote sensing information extraction for urban built up land.
一排排建设过半的公寓楼在原先的农业用地上拔地而起，其间出没的黄色建筑起重机的数量比这座拥有500万人口城市中的树木还要多。
Rows of half-completed apartment buildings rise over former farmland, each crowned with yellow construction cranes that seem to outnumber trees in parts of this dusty city of 5 million residents.
住宅坡屋顶设计对于增加建筑空间，节约用地和能源，丰富住宅户型，美化住宅、小区乃至整个城市面貌都有着举足轻重的作用。
The residential pitched design can increase construction of residential space, save land and energy, rich residential types, beautify dwelling houses, residential areas and urban.
城市开敞空间是指城市边界内的非建筑用地空间，主体是绿地系统。
What the open space of city meant inbounds by the city is not the building site space, the subject is a green land system.
《规定》要求，建筑基地临城市道路部分不得修建实体围墙，可以花坛、绿地绿篱等作为用地边界的隔离带。
"Provision" for the construction of urban roads of the base entities not build walls to flower-bed, such as green patches of land along the border area.
在城市土地资源日益紧缺的背景下，高层住宅建筑在节约用地、提高开发效益上有着独特的优势。
Increasingly scarce land resources in the urban context, high-rise residential buildings have unique advantages in land conservation, and improve development benefit.
建筑垂直绿化可以在不占用城市用地的情况下增加城市绿化率，对城市中日益恶化的生态环境进行调节。
Vertical planting can not occupy urban land, and increase in the rate of urban greening, adjusted on the worsening citys ecological environment.
摘要：深基坑在当今的城市高层建筑中已经比较普遍，二层~五层地下室的设计，大大节约了城市建设用地。
Abstract: the deep foundation pit in the city has been more common in high-rise buildings, 2 ~ 5 layers of basement design, greatly reduce the urban construction land.
摘要：深基坑在当今的城市高层建筑中已经比较普遍，二层~五层地下室的设计，大大节约了城市建设用地。
Abstract: the deep foundation pit in the city has been more common in high-rise buildings, 2 ~ 5 layers of basement design, greatly reduce the urban construction land.
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