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
机器，而类迴圈（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，谈的不机器，而类迴圈（closedtimelikecurve,CTC）。
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