horizontal reference
| plane
| horizontal reference | |
| el. | 水平参考 |
| space | 水平基准 |
| plane | |
| fenc. | 佩剑击剑线 |
| hydroel.st. од. | 平面 |
| manag. | 阶段; 平 |
| met. | 面; 程度 |
| met. од. | 水平 |
| soil. | 裂隙 |
| sport. | 飞机; 翼面 |
| |||
| 水平参考 | |||
| 水平基准 | |||
| 水平基准 (面) | |||
|
horizontal reference : 8 phrases in 6 subjects |
| Aviation | 2 |
| Engineering geology | 1 |
| Mining | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Sports | 1 |