A change in a certain phase, often in a scientific or technical context.

The adjustment or alteration in the phase of a process.

किसी प्रक्रिया के चरण में समायोजन या परिवर्तन।

English Usage: The phase variation in the manufacturing process led to improved efficiency.

Hindi Usage: विनिर्माण प्रक्रिया में चरण परिवर्तन ने दक्षता में सुधार किया।