+ expression difference

0-side difference

27-point difference sheme

2D finite-diffrence

2kL method of the optical-path difference

2nd-order difference ARED

3-bands grads difference method

3-D explicit finite difference

3-D finite difference

3D finite difference method

3D finite difference migration

3D finite-difference

3-D finite-difference numerical modeling

3-point and 5-point difference schemes

4-intersection-and-difference model

4-intersection-difference model

9-point difference scheme

a difference equation of single-species

A difference reel

a distinction without a difference