Key block Assembly error 2 Assembly quality 2 Control measures 2 Control standards 2 Degrees of freedom (mechanics) 2 Error control 2 Errors 2 Lining segments 2 Quality control 2 Quality control standards 2 Quasi-rectangular shield tunnel 2 Shield tunnel 2 Shielding 2 Ultrasonic devices 2 assembly quality 2 control standard 2 error analysis 2 lining segments 2 quasi-rectangular shield tunnel 2 Attention mechanisms 1 BERT-based language model 1 BERT-based language models 1 Computational linguistics 1 Information retrieval 1 Language informations 1 Language model 1 Language processing 1 Long-document neural information retrieval 1 Natural language processing systems 1