mean number
平均数：一组数字的总和除以数字的个数所得到的值。
常用释义
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美式发音
基本释义
- 平均数：一组数字的总和除以数字的个数所得到的值。
例句
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1·What is the mean number of days off schedule?延期交货天数的平均值是多少？
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2·Six is the mean number between three and nine.六是三和九的中间数。
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3·What you do first is to calculate the mean number.你首先要做的是算出平均数。
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4·The mean number of included studies per paper was 178 (range 19 to 530).每篇论文平均纳入178项试验 （范围介于19项至530项之间）。
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5·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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6·Patients had a mean number of 5.3 metastases (bilobar in 76%), associated to extrahepatic disease in 27%.这些患者的平均转移瘤为5.3个（76%有分叶），27%患者合并肝外疾病。
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7·In this paper, the properties of the mean number of optical phonons of the polaron in a polyatomic crystals are studied.研究多原子晶体中极化子光学声子平均数的性质。
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8·The mean number and volume of HCC tumours per liver was also reduced in the exercise group compared to the sedentary group.在运动组每肝脏体积肝癌的平均数目与体积同时也比安静对照组减少。
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9·The influences of the electronic velocity on the mean number of phonons of the strong-and weak-coupling polaron in a semiconductor quantum dot are derived.导出了电子速度对半导体量子点中强、弱耦合极化子的声子平均数的影响。
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10·The mean number of pollen grains per stigma is 8—12 Most of the pollen grains are from self pollination. The pollen vigour is strong in the pollinating period.柱头上的平均花粉量为8— 2 1个，但多数为来自自花的花粉，散粉期花粉活力较高。