deep etch इन हिंदी

deep: महासागर गढ़ा

etch: साफ़ झलकना उकेरना

	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.

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