Sleep is supposed to be a time of peace and relaxation.
睡眠应该是平静而放松的阶段。
It is a time of freedom, rest, and relaxation.
这是一个时间的自由，休息和放松。
The approach like those of routine measurements of relaxation time is simple and accurate.
不用作两维谱，测量过程类似于常规弛豫时间测量，实验简便、准确。
The relaxation of the strings, always could not play time.
松驰的琴弦，永远奏不出时代的强音。
The relaxation of the strings, always could not play time.
松驰的琴弦，永远奏不出时代的强音。
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