mining mechanization इन हिंदी

mining: खननीय खनिकर्म खनन

mechanization: मशीनीकरण

	1.	His major inventions were recognized as milestones in the history of underground mining mechanization.
	2.	Mine mechanization made a large labor force extraneous, and the population of Scotts Run has been in steady decline since the 1930s.

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