retrograde vernier इन हिंदी

retrograde: पतित होना अभिघात

vernier: वर्नियर

	1.	Retrograde verniers are found on some devices, including surveying instruments.
	2.	The retrograde vernier also extends backwards along the data scale.
	3.	A retrograde vernier is similar to the direct vernier, except its graduations are at a slightly larger spacing.

अंग्रेज़ी→नहीं। नहीं।→अंग्रेज़ी