The nuclear plant lost its main source of electric power to drive the pumps, and the tsunami knocked out the backup diesel generators that were supposed to drive the pumps in an emergency.
核电站失去了驱动冷却水泵的主要电力来源，海啸损毁了本应在紧急情况下驱动水泵的备用柴油发电机。
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And among the biggest automakers like Toyota, the interest is less in cars that drive themselves than in cars that have artificial intelligence capabilities to assist drivers, like emergency braking.