证据显示，太快地吸入过多的氧气可能夺走单电子的分子，形成自由基。
Evidence suggests that pumping in too much oxygen too quickly can strip the molecule of a single electron, creating a free radical.
它与食物和水一样必要，像空气一样被你吸入又释放，它必须保持自由和不被阻塞的流通。
It is as essential as food and water. And like the air which you inhale and exhale, it must be kept in free and unblocked circulation.
潜水不恰当可能导致湿井内的水预旋转，导致形成强烈的自由表面空气中心漩涡，并使得空气进入泵的吸入进口管道。
Inadequate submergence can result in pre-rotation of the water in the wet-well, resulting in the formation of strong free-surface air core vortices and the entrance of air into the pump suction inlet.
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