In this paper, it is introduced of underwater operating mission when installing petroleum drilling platform and medical guarantee for air diving and oxygen-heliumdiving.
文章介绍了石油钻井平台安装时的水下作业任务以及空气潜水和氮氧潜水医务保障情况。
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Uses: Helium is used in balloons and in deep-sea diving to dilute oxygen that divers breathe.
用途：氦被用于气球中，也用于深海潜水。在深海潜水中，氦用来稀释潜水员所呼吸的氧气。
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Diver's 300 + m for mixed-gas diving Suitable for saturation diving (helium enriched environment).