Error is noncumulative as long as pulse-to-step integrity is maintained by the stepper motor.
只要脉冲-步进的过程,误数据就不会积聚。
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Then in April three economists from the University of Massachusetts, Amherst, said that unorthodox statistical choices and a spreadsheet blunder had led Ms Reinhart and Mr Rogoff to exaggerate the drop-off in growth at high debt levels.
同年4月,马萨诸塞大学阿姆赫斯特分校的三名经济学家提出异议,认为数据处理不当和数据表错误导致Reinhart和Rogoff的研究夸大了高债务水平时期的经济跌幅。