求翻译：地铁施工地面控制测量包括地面平面控制测量和地面高程控制测量两部分，本文重点讨论平面控制网的建立过程、外业观测和数据处理。是什么意思？

Subway construction ground control survey, including the ground plane control measure and the ground elevation control measurement of two parts, the article focuses on the establishment process of the horizontal control network, Field observations and data processing.

subway construction ground control measurements include ground control and measurement plane and ground elevation control measure two components, this article focuses on the flat control web building process, from the observation and data processing.

The subway construction ground control survey surveys two parts including the ground horizontal control survey and the ground elevation control, this article key discussion plane control net establishment process, the field operation observation and the data processing.

Ground control survey includes ground subway construction plane control survey and ground elevation control measurement in two parts, this article focuses on horizontal control network of established procedures, field notes, and data processing.

正在翻译，请等待...