optical instrument sentence - optical instrument sentence in Hindi (21-30)

	21.	Diversifying from just being opticians, they also traded in all manner of optical instruments.
	22.	In it they gave no documentary evidence of optical instruments.
	23.	A number of pieces from his optical instrument collection were placed on display there.
	24.	Flakes of paint could contaminate optical instruments on the Hubble.
	25.	Dresden was historically a center for electrical engineering and the manufacture of optical instruments.
	26.	They sold mathematical, physical and optical instruments, particularly glasses.
	27.	This required the use of multiple optical instruments both on the ground and in space.
	28.	He began manufacturing Hadley's quadrant ( a predecessor to the sextant ) and optical instruments.
	29.	"It's a very precise optical instrument, " he said.
	30.	The Museo di Fisica e Storia Naturale of Florence commissioned several optical instruments from him.

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optical instrument in a sentence