 |
| |||
| 矿区平面直角坐标系以矿区任意子午线作为中央子午线，或〈和〉以任意高程基准面作为矿区投影高程基准面的高斯-克吕格〈Gauss-Kruge〉平面直角坐标系 | |||
|
coordinate system of mining area : 1 phrase in 1 subject |
| Technology | 1 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips