"The key is to use oxygen in the air as a re-agent, rather than carry the necessary chemicals around inside the battery," says Bruce.
“关键就在于使用空气中的氧气作为试剂，而不是在电池内部添装必需的化学成分。”布鲁斯说。
Red cells carry oxygen around the body. When the number of red cells is below normal this is called anemia.
红细胞会把氧气带到全身，红细胞的数量低于正常水平即所谓的贫血。
Red cells carry oxygen around the body. When the number of red cells is below normal this is called anemia. Anemia can make you tired, pale or short of breath.
红细胞会把氧气带到全身，红细胞的数量低于正常水平时即所谓的贫血时，此时你会感到疲劳乏力、脸色苍白或呼吸急促。
Red cells carry oxygen around the body. When the number of red cells is below normal this is called anemia. Anemia can make you tired, pale or short of breath.
红细胞会把氧气带到全身，红细胞的数量低于正常水平时即所谓的贫血时，此时你会感到疲劳乏力、脸色苍白或呼吸急促。
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