渡河水准测量的英文

• river crossing

• 渡河:    cross a river
• 水准测量:    differential levelling; leve ...
• 过河水准测量:    river-crossing leveling
• 跨河水准测量:    river crossing levelling; river －crossing leveling; river-crossing leveling; river－crossing leveling
• 面水准测量:    area leveling; area levelling; grid levelling