Vernier caliper kayan aiki ne da ake amfani dashi don auna daidai tsayi, diamita na ciki, diamita na waje, da zurfin abubuwa. Babban aikinsa shine samar da ma'aunin ma'auni mai tsayi, wanda aka saba amfani dashi a aikin injiniya, masana'antu, da gwaje-gwajen kimiyya. Belo...
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