A space elevator would be cheaper.
太空电梯会更便宜。
But even that would be cheaper than many other sorts of mitigation.
但即便是这一成本,仍比其他许多类型的减排措施来得便宜。
Not only that, such batteries would be cheaper and would run for longer between charges.
不仅如此,此类电池将更加便宜,充电间隔时间更长。
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