A component used in some older types of machinery or tools, typically as part of a surveying instrument.
मापने वाले उपकरण में प्रयुक्त एक पुराना यंत्र भाग
English Usage: The engineer adjusted the back sight drum to get the accurate measurements.
Hindi Usage: इंजीनियर ने सही माप के लिए पीछे दृष्टि ड्रम को समायोजित किया।
pīchē dṛṣṭi ḍram, peeche drishti drum, picha drishti dham, picche drishti drum, peeche dhrishti drom, picha drishti drum
