underground construction

field of engineering for the design and construction of subsurface structures

en-GB/ˈʌndəɡɹaʊnd kənˈstɹʌkʃn/
en-US/ˌʌndɚˈɡɹæʊnd kənˈstɹʌkʃən/

श्रेणियाँ:

architectural engineeringcivil engineeringeconomic activity