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In terms of daily arrival data, statistic and analyze ship flows laws. among which, daily arriving ship according with Normal Distribution, the average headway according with Erlang Distribution approximately. 根据到船资料,统计分析了船舶流到船规律,其中日到船近似服从正态分布,日到船平均船头间距近似服从爱而朗分布,为航道通过能力的计算提供理论基础。
Did you make any headway in your research work? 你们的研究工作有进展吗？
The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
The average output of the factory is 20 cars a day. 该工厂的平均产量是每天20辆汽车。
The boat made slow headway against the tide. 那船逆着潮水缓慢地前进。
We are making little headway with the negotiations. 我们在谈判中没有取得什么进展。
His income is well below the average. 他的收入大大低于平均水平。
We fail one student per year on average. 我们平均每年有一个学生不及格。
Meals average out at 5 per head. 膳食平均每人5英镑。
On average we receive five letters each day. 我们平均每天收到五封信。
Each household sold, on the average, two pigs. 平均每户交售了两口生猪。
Our reps make on average six calls day. 我们的销售代表平均每天打六次电话。
His work at school is below the average. 他的学业成绩在一般水平以下。
The readings we took were well above average. 我们记录的读数远远高於平均数。
She has made remarkable headway in her writing skills. 她在写作技巧方面有了长足进步。
Tom's work at school is above the average. 汤姆的功课是中上等水平。
On average, 15 worth of goods is stole every day. 平均每天被窃取的货物价值为15英镑。
On the average, there are 300 tourists a week. 每星期平均有300游客。
The average age of the students is 19. 学生的平均年龄是19岁。
Months of high and low sales average out over the year. 销售额高低不同的月份按全年统算达到一般水平。