最终这种技术被变为现实，现在不论是小型燃料电池，又或者是移动装置中的可替换电池还有为建筑提供能源的电池都可以见到它的身影。
The technology is finally becoming practical, from tiny fuel cells to replace batteries in portable devices to large ones that can power buildings.
最终这种技术被变为现实，现在不论是小型燃料电池，又或者是移动装置中的可替换电池还有为建筑提供能源的电池都可以见到它的身影。
The technology is finally becoming practical, from tiny fuel cells to replace batteries in portable devices to large ones that can power buildings.
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