| 释义 |
TVMDC | Acronym | Definition |
|---|
| TVMDC➣True + Variation = Magnetic & Magnetic + Deviation = Compass (navigation formula) | | TVMDC➣True Virgins Make Dull Companions (mnemonic for navigation formula) | | TVMDC➣TV Makes Dull Children (mnemonic for navigation formula) |
|