A reference line used in geodetics to determine geographic locations and perform measurements.

भूवैज्ञानिक आधार रेखा

English Usage: The geodetic base-line was crucial for the accurate mapping of the new territory.

Hindi Usage: भूवैज्ञानिक आधार रेखा नए क्षेत्र के सटीक मानचित्रण के लिए महत्वपूर्ण थी।