split and merge based on quad-tree

split-split plot design

Split-split plot

split chase mo(u)ld split(ting) chase mo(u)ld

adaptive quad-tree model

bridge quad

BW quad image processor

centre quad

Colon bacillus quad living bacterium

color quad image processor

conductor on quad bundled

conductors on quad bundled

cosmic radiationceramic quad flat pack

CPLDceramic quad flat pack

CPMceramic quad flat pack

CQFceramic quad flat pack

dotted quad

double sided quad density disk

em quad