1) hole survey by center line method
中线法洞内测量
2) traverse survey inside tunnel
洞内导线测量
1.
However, it is one of the topics worthy of study that how the results of GPS survey that is based on the normal line can be converted to be compatible with the traverse survey inside tunnels that is based on the plumb line, so as to minimize the influence of the plumb line deflection on the transverse break-through accuracy of tunnels.
但是,如何将以法线为准的地表GPS成果改换到与以垂线为准的洞内导线测量相符合,从而解决好垂线偏差对隧道贯通精度的影响,是一个值得探讨的问题。
3) the basic traverse survey inside tunnel
洞内基本导线测量
4) surveying of the cross section in underground tunnel
洞内横断面测量
5) center coordinate survey of portal hole
洞门中心测量
6) measuring method for wind tunnel
风洞测量方法
补充资料：中线法堆坝的下游坡
中线法堆坝的下游坡
中线法堆坝的下游坡
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条