A sequence of events or components occurring one after another, typically referring to two adjacent sections or compartments.

एक के बाद एक दो चैम्बर

English Usage: The engineers designed a back to back double chamber system for the new machinery.

Hindi Usage: इंजीनियरों ने नई मशीनरी के लिए एक के बाद एक दो कक्ष प्रणाली डिज़ाइन की।