| нефт.газ. |
drilling hole wall sloughing (MichaelBurov); sloughing (MichaelBurov); sloughing of walls (MichaelBurov); sluffing (MichaelBurov); wall sloughing (MichaelBurov); wall sluffing (MichaelBurov); borehole caving (MichaelBurov); borehole sloughing (MichaelBurov); borehole breakouts (MichaelBurov) |
