 |
| Subject | Chinese | English |
| tech. | 竖直三角测量 | vertical triangulation |
| bridg.constr. | 竖直角 | upright angle |
| expl. | 竖直角一点至观测目标的方向线与水平面间的夹角，仰角为正,俯角为负 | vertical angle |
| tech. | 竖直角测量 | measurement of vertical angle |
| tech. | 经纬仪竖直角 | hollow center |
|
| Subject | Chinese | English |
| tech. | 竖直三角测量 | vertical triangulation |
| bridg.constr. | 竖直角 | upright angle |
| expl. | 竖直角一点至观测目标的方向线与水平面间的夹角，仰角为正,俯角为负 | vertical angle |
| tech. | 竖直角测量 | measurement of vertical angle |
| tech. | 经纬仪竖直角 | hollow center |