What are the steps to escape from the submarine?
Ensure the pressure inside the submarine matches the external pressure to prevent rapid decompression when opening the hatch. Open the hatch manually. Unlock the hatch wheel or handle and turn it. Be prepared for a sudden influx of water if the hatch is submerged. Exit the opening quickly and cautiously, ensuring that others do not interfere. If you exit alone, move quickly yet carefully in open water. Place the mouthpiece. Secure the mask or mouthpiece around your mouth. Activate the oxygen supply according to the cylinder instructions. Take a deep breath. Breathe slowly and deeply to conserve oxygen.
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