Principal meridian
（重定向自Principal meridians）
![Figure 1. This BLM map depicts the principal meridians and baselines used for surveying states (colored) in the PLSS.](/Images/godic/202502/04/Meridians-baselines4513.png")
A principal meridian is a meridian used for survey control in a large region.
Principal meridians
英语百科
- Granuloma,Plasma Cell,Orbital
- Granuloma,Plasma Cell,Pulmonary
- granuloma pouch
- granuloma pouch method
- Granuloma,Pseudopyogenic
- granuloma pudendi
- granuloma pudente tropicum
- Granuloma,Pyogenic
- Granuloma pyogenicum
- Granuloma,Respiratory Tract
- granuloma sarcomatodes
- Granulomas,Dental
- Granulomas,Eosinophilic
- Granulomas,Giant Cell
- Granulomas,Laryngeal
- Granulomas,Lethal Midline
- Granulomas,Periapical
- Granulomas,Plasma Cell
- Granulomas,Pseudopyogenic
- Granulomas,Respiratory Tract
- Granulomata
- granulomatas
- granuloma telangiectaticum
- Granuloma telangiectaticum of skin
- Granuloma Telangiecticum