मुख्य कमानी — mainspring (Noun)
मुख्य आधार — mainspring (Noun)
मुख्य प्रेरणा — mainspring (Noun)
मुख्य प्रेरणा — mainspring (Noun)
बड़ी कमानी — mainspring (Noun)
mainspring — मुख्य प्रेरणा]मुख्य कमानी]मुख्य आधार
Mainspring — The principal or most important spring in a piece of mechanism, especially the moving spring of a watch or clock or the spring in a gunlock which impels the hammer. Hence: The chief or most powerful motive; the efficient cause of action.