Conclusion After improving the capability of pressure and water resistance to the hard devices, ECG and HR monitoring for underwater diver can be fully realized.

结论：硬件装置改进耐压和防水性能后，完全可以实现潜水员水下心电、心率信号的实时监测，并可扩展到其他生理信号的实时监测。

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If a diver ascends too quickly from a high-pressure underwater environment to a lower-pressure one, gases dissolved in blood and tissue expand and form bubbles.

如果潜水员从一个高压的水下环境迅速上浮到一个低压的水下环境，他们的血液和组织中溶解的气体就会膨胀并形成气泡。

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I'm also an awesome swimmer and diver and have excellent underwater vision.

我也是很棒的游泳能手，潜水能手，我具有极好的水下视觉。

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After graduating he worked briefly for the North Wales water authority and from 1985 to 1986 he worked as a sub-sea engineer and diver for British Underwater Engineering based in London, spending a lot of time off-shore.

BBC: Weather - David Braine - BBC South West