What is the difference in short orifice and long orifice plates?
What is the difference in short orifice and long orifice plates? or how do you give their definitions?
This is a very specific technical question and we do not have the competence to provide an answer. However, the following link does contain a description of both long and short orifice plates concerning printing processes:
Commercial systems employing the continuous binary ink jet approach have been successfully employed using longer (e.g. page width) orifice plates of lower resolution (e.g. 120 orifices per inch) and shorter (e.g. line height) orifice plates having high resolution (e.g. 300 orifices/inch). Intermediate length orifice arrays having intermediate resolution have also been used successfully.
If this information is not sufficient, we suggest that you contact some educational institution in your own country that teaches printing techniques or else get in touch with a major printing firm.