或者，膨胀可能是宇宙冷融合的一个结果。

Or it could be a case of cosmological cold fusion.

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“如果在一年内就可以建造50个这样的船队，那么在像冷核融合这样的技术能发挥作用之前，我们便足以镇守住堡垒。”Salter很乐观地总结道。

"If you could build 50 a year you could hold the fort until something like cold fusion was working," Salter concluded brightly.

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完全达到无碳事实上是不可能的，或者至少很难做到类似于坚持使用冷核融合反应的汽车。

Attaining complete carbon neutrality is virtually impossible, or at least so unattainable it's akin to holding out for a vehicle that runs on cold fusion.

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