berkefeld filter इन हिंदी

filter: निष्यंतक निस्पादक

	1.	Some of the first Berkefeld filters were used during the 1892 cholera epidemic in Hamburg.
	2.	A "'Berkefeld filter "'is a water filter made of diatomaceous earth ( " mine in Hanover, Germany, where the ceramic material was obtained.

beriberi	beriberi heart	beriberis
berichte	berk	berkeleianism
berkeley and hartely apparatus	berkeley unix	berkeliam

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