The quality of GPS data pre-processing is the key to improve GPS positioning precision in either GPS static positioning or dynamic POD.
在GPS静态定位和动态定轨中，GPS数据预处理质量的好坏都直接影响着GPS定位精度。
Static positioning at or near end-range places the soft tissue structures of the lumbar spine under prolonged stress or stretch.
脊椎端部或其附近部位的静止会使腰椎软组织结构处于长时间的压迫或伸张状态。
Static positioning at or near end-range places the soft tissue structures of the lumbar spine under prolonged stress or stretch.
脊椎端部或其附近部位的静止会使腰椎软组织结构处于长时间的压迫或伸张状态。
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