... regular best asymptotically normal estimator 正则最佳渐近正态估计量 regular periodicity 规则周期性 rejective sampling 拒绝抽样 ...
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Regular irregularities occur with constant periodicity and are usually associated with partial heart block.
规律的不整脉随固定周期出现,而且常伴有心脏部分传导阻滞。
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