３）地面标高的确定：依据设计图在罐内壁上弹出标高线992mm。的翻译：3) determine the elevation of the ground: according to design drawings in the tank wall elevation line pop up on 992mm. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

3) to determine the elevation of the ground: according to the design elevation of the tank wall pop line 992mm.

3) determine the elevation of the ground: according to design drawings in the tank wall elevation line pop up on 992mm.