它相当于美国涉及的第二大电池技术摸索。
It amounts to the second big battery technology fumble the United States has been involved with.
大电池持续比你以前在该领域经验丰富的更长。
The large battery packs last for much longer than what you have previously experienced in the field.
多数大电池供电的产品提供电池电量计来指示电池的剩余电量。
Most battery-powered products attempt to provide a fuel gauge of remaining battery capacity.
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