Physicists studying the issue talk not about time machines but about closed timelike curves (CTCs).
讨论这类想法的物理学家，谈的不是
器，而是类迴圈（closedtimelikecurve,CTC）。
Physicists studying the issue talk not about time machines but about closed timelike curves (CTCs).
讨论这类想法的物理学家，谈的不是器，而是类迴圈（closedtimelikecurve,CTC）。
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