The accuracy of ionospheric delay correction is an important factor that affects the positioning precision in the applications of GPS in wide area, local area navigation systems and RTK.
在GPS的广域、局域增强导航系统和rtk的应用中，电离层延迟改正的准确度都是决定测量定位结果能否达到精度要求的重要因素。
The major error source of GPS systems, especially of differential GPS, is the multipath signals. It will deteriorate the precision of positioning.
GPS测量，尤其是差分GPS测量，多径信号是主要的误差来源，会引起定位精确度的恶化。
The micro-motion worktable is the important part in micro-mechanical systems and the key component to achieve high-precision positioning.
微动工作台是微机械系统的重要组成部分，是实现高精度定位的关键部件。
The micro-motion worktable is the important part in micro-mechanical systems and the key component to achieve high-precision positioning.
微动工作台是微机械系统的重要组成部分，是实现高精度定位的关键部件。
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