translation.en: Now the one thing that I forgot to mention, is that to obviate the problem of the nitrogen narcosis -- all of those blue dots in our body -- you remove the nitrogen and you replace it with helium.
translation.zh: 我忘记提到的一点是 如何排除氮气麻醉的问题 也就是我们体内的这些蓝色小点 我们可以用氦气来替换氮气