通过介绍硬岩掘进机的设备性能和施工特点，以及其在长大隧道施工应用带来的优势，突出说明了隧道掘进机先进的设备功能对隧道修建技术水平的极大推动，阐明了掘进机在地下工程建设领域广阔的应用前景，对掘进机的推广使用具有指导意义。

The article presents the functions, features, advantages and application cases of tunnel boring machines in construction of long tunnels, indicating that tunnel boring machines have made great contributions to the progress of the tunneling technology. The article also presents the splendid future of tunnel boring machines in China. The article can provide some guidance for the promotion of tunnel boring machines in China.