abstracting
  摘要
  Ab·stract v. t. [imp. & p. p. Abstracted; p. pr. & vb. n. Abstracting.]
  1. To withdraw; to separate; to take away.
     He was incapable of forming any opinion or resolution abstracted from his own prejudices.   --Sir W. Scott.
  2. To draw off in respect to interest or attention; as, his was wholly abstracted by other objects.
     The young stranger had been abstracted and silent.   --Blackw. Mag.
  3. To separate, as ideas, by the operation of the mind; to consider by itself; to contemplate separately, as a quality or attribute.
  4. To epitomize; to abridge.
  5. To take secretly or dishonestly; to purloin; as, to abstract goods from a parcel, or money from a till.
     Von Rosen had quietly abstracted the bearing-reins from the harness.   --W. Black.
  6. Chem. To separate, as the more volatile or soluble parts of a substance, by distillation or other chemical processes. In this sense extract is now more generally used.