tunnel construction machinery meaning in Chinese

隧道施工坏

As the development of science and technology , the advanced machineries are mainly regarded as productive forces in modern tunnel construction ; so paying close attention to the advanced wear for tunnel construction machineries has a widespread practical significance
摘要随着科学技术的发展，现代隧道施工主要以先进的机械设备为主要生产力，所以关注隧道施工机械的超前磨损有广泛的现实意义。