空气瓶内装有纯净高压空气，很像 SCUBA 潜水员用的气瓶。
The air tank contains high-pressure purified air and is exactly like the tank used by a SCUBA diver.
它们活在病毒萦绕的污浊空气里，每吸一口气，都暴露在病毒当中。
They live in air thick with viral loads, and they are exposed every time they breathe in.
解决这一问题的方法之一是利用风能来压缩空气，使空气进入气密的地下储气站。
One answer is to use the energy to compress air, which can be squirrelled away in hermetically sealed underground caverns.
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