section a-a a-a

imaging of a pulverized coal flame

alignment of a hole

Area of a well

building of a well-off societyin an all-round way

direction deviation of a hole

dog-leg of well hole

freezing wall of a well

laser generation of acoustic waves

size of a well

wall of a well

water lowering of a well

water-intake capacity of a Well

A-A-A conjugation structure

S-A(A-A) missile

A.A.A.

Abnormal findings on diagnostic imaging of breast

Abnormal findings on diagnostic imaging of limbs

Abnormal findings on diagnostic imaging of lung