| |||
plan-position indicator scope | |||
plane-position indicator | |||
plan position indicator | |||
surface position indicator | |||
| |||
PPI scope | |||
| |||
plan position indicator |
平面 位置指示器 : 32 phrases in 6 subjects |
Aviation | 2 |
Computers | 1 |
Earth sciences | 1 |
Electronics | 11 |
Space | 7 |
Technology | 10 |