Correction: an early version of this map wrongly put France in the same dark orange category as Italy.
更正：在该图早期版本中，法国和意大利颜色一致，都是暗橙色。
The scientists, from Vietnam, Finland, Canada and elsewhere, are demanding a correction to the map.
来自越南、芬兰、加拿大和其他地区的科学家要求对该幅地图进行修改。
It is the foundation of gravitational passive navigation and has considerable value on the gravitational map matching and the correction of navigational errors inherent in INS system.
所做的研究是实施重力无源导航定位的基础，对下一步的重力图匹配及导航误差的修正具有重要的意义。
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