excavation

US /ˌeks.kəˈveɪ.ʃən/
UK /ˌeks.kəˈveɪ.ʃən/
1.

moi lên, bới lên, đào lên, đào sâu, khai quật, làm lở, dọn đường, xoi lủng

the action of excavating something, especially an archaeological site.

:
the methods of excavation have to be extremely rigorous