垂直: perpendicular; vertical; squ ...几何: how much; how many精度: precision; accuracy; degree ...因子: divisor; factor; determiner; ...几何精度因子: geometric dilution of precision几何精度衰减因子: gdop geometric dilution of precision垂直精度因子: vertical dilution of precision精度因子垂直: dilution of precision vertical几何精度: geometric accuracy; geometrical accuracy等几何精度线: constant geometric accuracy contours几何精度检验: box ertical drilling machines-testing of the accuracy-: geometrical tests几何精度系数: geometric dilution of precision精度因子: dilution of precision精度因子北向: dilution of precision north精度因子东向: dilution of precision east时差精度因子: time dilution of precision时间精度因子: time dilution of precision水平精度因子: horizontal dilution of precision姿态精度因子: adop attitude dilution of precision精度系数精度因子: dilution of precision时差精度因子时间精度因子: time dilution of precision精度的几何因子: geometry dilution of precision精度几何扩散因子: gdogeometry dilution of precision位置精度几何因子: position dilution of precision垂直精度扩散因子: vdovertical dilution of precision