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估算是根据已有数据和某些要求对计算结果进行大概的推断,是在日常生活中遇到不需要得到精确结果的情况时对数据的一种快速、敏锐的感应、处理能
Estimation is based on available data and some estimates of the results of the general inference is encountered in daily life do not need to get accurate results when the data of a rapid and sensitive induction,