自然气候变化的混沌系统单每八十年会出现这样的变缓趋势，即使长期变暖趋势出现。
Natural variation alone in the chaotic climate system would produce such a slowing every eight decades, even with the long-term warming trend seen.
此类患者睡眠时呼吸受阻，长期持续发作可能并发心动过缓或房颤。
This disorder, in which your breathing is interrupted during sleep, can cause bradycardia and bursts of atrial fibrillation.
在没有电力资源的情况下，既要解决循环链梯缓降速度，实现平滑控制的问题，又要解决系统长期处于闲置状态，而不影响其可靠性的问题。
When there is on electrical power, slow descending control of circular chain ladder as well as to assure the reliability in use when set aside for a long time has to be solved.
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