14025478-n
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| 正向睡眠, 正规 睡眠, 无梦 睡眠, 非速眼动 睡眠 期, 正相睡眠, 正向 睡眠, 无梦睡眠, 正规睡眠, 非速眼动睡眠期, 正相 睡眠 |
| orthodox sleep, nonrapid eye movement sleep, NREM sleep, nonrapid eye movement, NREM |
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a recurring sleep state during which rapid eye movements do not occur and dreaming does not occur; accounts for about 75% of normal sleep time |
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