区别仅在于热气从哪里来，你可以在火上燃煤，或者你可以创造一个可控制的核裂变反应。
The only difference is where the heat comes from — to get it, you can light coal on fire, or you can create a controlled nuclear fission reaction.
区别仅在于热气从哪里来，你可以在火上燃煤，或者你可以创造一个可控制的核裂变反应。
The only difference is where the heat comes from — to get it, you can light coal on fire, or you can create a controlled nuclear fission reaction.
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