single coverage
| altitude
| single coverage abbr. | |
| geophys. | 单次覆盖 |
| altitude abbr. | |
| hydroel.st. | 标高 |
| hydroel.st. од. | 海拔; 高程 |
| met. | 水位 |
| oil | 顶垂线 |
| oil од. | 地平纬度; 高线 |
| space | 高空 |
| sport. med. | 高原 |
| tech. | 海拔高度 |
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| 单次覆盖 | |||
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| 单次覆盖 | |||
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single coverage : 4 phrases in 3 subjects |
| Air defense | 1 |
| Geophysics | 2 |
| Oil / petroleum | 1 |