KOLKATA: The first phase of tunneling of the East-West Metro project is on the verge of completion. Prerna, the tunnel-boring machine (TBM) drilling the Howrahbound tunnel, is just 15m from punching ...
The diaphragm is the primary muscle used in respiration, which is the process of breathing. This dome-shaped muscle is located just below the lungs and heart. It contracts continually as you breathe ...
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