In order to monitor the deformation of the main and auxiliary wells in the industry square,which was caused by mining co......

We review advances in the monitoring of gully erosion,finding that there are few existing studies on the dynamic monitor......

In kinematic navigation and positioning,abnormal observations and kinematic model disturbances are one of the key factor......

目的 结合Google Earth建立村级饮水型地方性砷中毒地理信息数据库,为有效地防治和管理地方性砷中毒提供科学依据.方法 2008年,选......