The positioning errors at the four corners of the PSDs are affected most.
其对PSD四个角位置附近定位误差的影响最大。
Probe positioning errors can be obtained with high accuracy using the laser positioning systems.
探头的位置误差为可知值，由激光定位系统获得。
The impact of the ionosphere on the accuracy is particularly significant in many factors of positioning errors.
而在造成定位误差的众多因素中，电离层对精度的影响尤为显著。
应用推荐