| 单词 | topographic mapping |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔trimetrogon〕A system of aerial photography in which one vertical and two oblique photographs are simultaneously taken for use in topographic mapping.三镜头航空测绘系统：一种航空测绘系统，用于地形绘图中，可同时拍摄一张竖直的和两张倾斜的照片美国传统 |
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