real-time recognition of formation lithology

1+X formation

air formation attacking ground targets

air defense formation and disposition

air combat formation

Aikendaban Formation

agricultural capital formation

aggregation formation

Agent coalition formation

Agebada Formation

age of the original Liantuo Formation

AGE OF FORMATION

Aershan Formation

Aerpishimaibulake formation

aerial defense of formation

Aerenchyma formation

aeration-bubble formation process

aerated formation water