deep etch meaning in Hindi

Examples

1. By pouring nitric acid over the surface and letting it react for some time, he actually made a deep etch which developed the macrostructure.
2. Freeze fracture deep etch electron microscopy image of " C . merolae ", showing two cells, one in which the plastid has begun to divide.
3. Etching for many hours ( up to 24 ) will be as dark as etching for one hour, but the deep etch would produce raised ink on the paper.