潜水器深海下潜，带有压力刻度——马里亚纳海沟概念

ual underwater footage of a submersible descending from surface to extreme ocean depths up to 11,000 meters. The scene features depth scales in meters and feet, increasing pressure values in megapascals, and oceanic zones including epipelagic, mesopelagic, bathypelagic, abyssopelagic, and hadal zone. A rocky underwater cliff extends into darkness while light gradually fades, with floating bubbles enhancing the deep-sea atmosphere.