mean number
英 美
What is the mean number of days off schedule?
延期交货天数的平均值是多少？
What you do first is to calculate the mean number.
你首先要做的是算出平均数。
The mean number of lymph nodes retrieved per patient was 14.7 with VATS and 18.1 with open thoracotomy.
平均每个胸腔镜手术病人可以清扫出14.7个淋巴结，平均每个开胸病人可以清扫出18.1个淋巴结。
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