1) ring tunnel
环形巷道
2) Ring-shapped tunnel drainage system
环形巷道疏干系统
3) Rectangular tunnel
矩形巷道
1.
Equivalent transmission line analysis for the wave-guiding characteristics in rectangular tunnels;
矩形巷道导波特性的等效传输线法分析
2.
Transverse dimensions of rectangular tunnels have great influence on electromagnetic waves propagation.
矩形巷道截面尺寸对电磁波的传播特性有很大的影响。
3.
Based on the radio waves propagation models of circular tunnels and rectangular tunnels,the relation between attenuation and conductivity is analyzed and the concept of conductivity breakpoint is presented.
根据圆形巷道和矩形巷道的电波传播模型,分析了电波衰减率和电导率的关系,并且提出了电导率断点的概念。
4) Circular tunnel
圆形巷道
1.
Based on the radio waves propagation models of circular tunnels and rectangular tunnels,the relation between attenuation and conductivity is analyzed and the concept of conductivity breakpoint is presented.
根据圆形巷道和矩形巷道的电波传播模型,分析了电波衰减率和电导率的关系,并且提出了电导率断点的概念。
5) Roadway deformation
巷道变形
1.
Study on over rock moving and roadway deformation within the curve subsidence zone;
采场弯曲下沉带内部巷道变形与岩层移动规律研究
6) circular roadway
圆形巷道
1.
Natural boundary element method for the stress field of circular roadway's surrounding rock;
圆形巷道围岩应力场的自然边界元法
2.
Analysis of stress field of rock surrounding circular roadway based on damage theory;
基于损伤理论的圆形巷道围岩应力场分析
补充资料：环形
圆环。也指这样的形状。
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