photographic plate sentence - photographic plate sentence in Hindi (21-30)

	21.	This involved the taking and measurement of 1400 photographic plates.
	22.	Before CCDs, photographic plates were a common method of observation.
	23.	Or do we still use photographic plates or click detectors on tracks for YDSE's?
	24.	On 9 December he made a sequence of superb photographic plates of the event.
	25.	She became an expert on estimating magnitudes of stars from images on photographic plates.
	26.	He found that something came through, that would expose photographic plates and cause fluorescence.
	27.	These expeditions obtained 350 photographic plates for the 1874 transit.
	28.	On his death in 1900, he left approximately 360, 000 carefully preserved photographic plates.
	29.	Until 1970 it had taken over 4, 000 photographic plates.
	30.	Displacements of 1 / 1000 of a fringe could be measured on the photographic plates.

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photographic plate in a sentence