The genuineness of bank notes can easily be checked using the appropriate illumination to show the -------- in the paper and ink.

In this method, multicolored image on the blanket cylinder segment is first transferred onto a printing plate and then transferred onto a second blanket cylinder.

.STL file format in 3D printing refers to 

OPC Means

The inkjet technology in which the ink drop is generated only if the print image requires it.

The expansion for D2T2 which is a shortened term that physically and chemically defines thermal sublimation