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North Seeking Gyro Survey Tool Terminology | SPT - Directional survey tools
![PDF] A New North-seeking Method Based on MEMS Gyroscope | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/0b8f16cd55828f8df9e730e63c0650e27c14aa29/5-Figure6-1.png "PDF] A New North-seeking Method Based on MEMS Gyroscope | Semantic Scholar")
PDF] A New North-seeking Method Based on MEMS Gyroscope | Semantic Scholar
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