作者: Julian Canto-Perello , Jorge Curiel-Esparza
DOI: 10.1016/S0886-7798(01)00041-4
关键词:
摘要: … The accessibility can be planned in two ways: on the one hand, the utility tunnel can be … the utility tunnel is called ‘searchable’ (see Fig. 1); on the other hand, we can find utility tunnels …