1D chain-like

1D chain-like structure

1D Chiral chain

1-D double-chain structure

1D quantum chain

3-D Markov chain

3D scan chain design

differential polymerase chain reaction (d-PCR)

section d-d d-d

2D-2D image registration

2D-3D

2D-3D co-plotting

2D-3D image registration

2D-3D mapping

2D-3D transformation

D D fusion

d D reaction

d d reaction d d

d d reactor