نتایج جستجو برای: surveying

تعداد نتایج: 7877  

Journal: :British Dental Journal 2000

2018
Qijin Chen Xiaoji Niu Lili Zuo Tisheng Zhang Fuqin Xiao Yi Liu Jingnan Liu

Accurate measurement of the railway track geometry is a task of fundamental importance to ensure the track quality in both the construction phase and the regular maintenance stage. Conventional track geometry measuring trolleys (TGMTs) in combination with classical geodetic surveying apparatus such as total stations alone cannot meet the requirements of measurement accuracy and surveying effici...

Journal: :J. Geographic Information System 2009
Yonghua Wang Wenfen Luo Wenyou Fan

The original surveying tools and methods are backward and low efficient and they will also generate lots of errors in the National secondary land surveying. MapSUV rural land surveying palm mapping system (MapSUV palm mapping system) based on 3S techniques, combines MapGIS rural land surveying database management system. It supports the spatial location information collection and attributes dat...

Journal: :Evaluation & the Health Professions 2010

Journal: :The Geographical Journal 1911

Journal: :The Geographical Journal 1909

Journal: :The Geographical Journal 1913

Journal: :Nature 1888

Journal: :The Geographical Journal 1906

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