A. Any one point outside the Upper or Lower Control Limits.

任一点超出上限或下限控制。

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The process industry often USES averaging level control, which seeks to make the outlet flow as smooth as possible while keeping the tank level within the upper and lower limits.

过程工业中常常提出均匀液位控制问题，即在保证液位不出界的前提下，使输出流量尽可能平缓。

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Monitoring results of both groups were within normal limits, but BP, BOS, HR and RR were lower and SPO2 higher in the research than in the control group.

两组心电监测仪监测结果均在正常范围内，但研究组血压、血氧饱和度、心率、呼吸频率较小，SPO2高于对照组。

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