电池组是后备系统之一，用来为冷却工作提供8小时的电力支持，它们做到了。
The batteries were designed as one of the backup systems to provide power for cooling the core for 8 hours. And they did.
电池组是后备系统之一，用来为冷却工作提供8小时的电力支持，它们做到了。
The batteries were designed as one of the backup systems to provide power for cooling the core for 8 hours. And they did.
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