二次衬砌 meaning in Chinese

secondary lining

Reason analysis and treatment for tunnel cracks
关于隧道二次衬砌砼裂缝
Numerical analysis of secondary lining in double - arch tunnel
双连拱隧道二次衬砌施工数值分析
Evaluation of the effect of collapse in top area of a double - arched tunnel on its the secondary lining
双连拱隧道洞顶坍方对二次衬砌稳定影响评价
Analysis of the interaction between primary support and the secend linning of large span and double arch tunnel
大跨连拱隧道初期支护与二次衬砌相互作用分析
In this thesis , the measure method for spray concrete and concrete lining was explained shortly and sweetly
本文简要介绍了隧道喷混凝土和二次衬砌的检测方法。

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