Question

求帮翻译一个英文数学题

First,Young had her staff construct the average age of Northern and Southeast B737-200fleets, by quarter, since the introduction of the aircraft to service by eachairline in late 2001 and early 2002. The average age of each fleet wascalculated by firstmultiplying the total number of calendar days that each aircrafthad been in service at the pertinent point in time by the average dailyutilization of the respective fleet to total fleet-hours flown. The totalfleet-hours flown was then divided by the number of aircraft in service at thattime, giving the age of the "average" aircraft in the fleet.
The averageutilization was found by taking the actual total fleet-hours flown at September30, 2010, from Northern and Southeast data, and dividing by total days inservice for all aircraft at that time. The average utilization for Southeastwas 8.3 hours per day, and the average utilization for Northern was 8.7 hoursper day. Because the available cost data were calculated for each yearly periodending at the end of the first quarter, average fleet age was calculated at thesame points in time.
看了一个小时了，数学名词方面实在不懂，麻烦了
The average age of each fleet was calculated by first multiplying the total number of calendar days that each aircraft had been in service at the pertinent point in time by the average daily utilization of the respective fleet to total fleet-hours flown.

主要是这句

Answer 1

首先，年轻的她队伍建设的北部和东南b737-200fleets，平均年龄的四分之一，因为在2001年底和2002年初eachairline的飞机的服务介绍。平均年龄计算每个舰队的firstmultiplying总日历天数，每aircrafthad被使用在时间相关的各个车队平均dailyutilization总舰队飞行小时。飞行小时的totalfleet然后除以当时在役飞机的数量，使编队中的“平均”飞机的时代。

该averageutilization以实际总舰队的飞行时间在9月30日，2010发现，从北部和东南部的数据，除以总天所有飞机当时在职的。为southeastwas每天8.3小时平均利用率，和北部的平均利用率为8.7
hoursper天。因为计算各年度periodending在第一季度末是提供的成本数据，计算在同一时间点的平均年龄是舰队。

Answer 2

翻译：
首先，年轻有她的工作人员建造的平均年龄北部和东南亚B737-200fleets的，按季度，由于在2001年底和2002年初引进的飞机由eachairline服务。各车队的平均年龄wascalculated firstmultiplying总日历天数每个aircrafthad一直在服务相关的时间点，由各自的船队，船队总飞行小时平均dailyutilization。totalfleet飞行小时的飞机数量在thattime服务，让飞机在舰队的“平均”年龄的再除以，
采取实际船队总飞行小时在9月30日，从2010年被发现。averageutilization北部和东南亚的数据，再除以所有飞机当时在职的总天数。每天Southeastwas 8.3小时的平均利用率，北方的平均利用率每天8.7 hoursper。因为可用的成本数据在第一季度结束时，分别计算各年度periodending车队平均车龄计算在thesame点时间。

Answer 3

楼主是这句吗？
每架飞机的平均寿命即飞机的总飞行时间是通过首先把在指定时间点处每架飞机都在使用中的日历天的总数/总天数与平均每天每架飞机的利用率相乘来计算得到。

Answer 4

哪几个词 不懂呢

追问

The average age of each fleet was calculated。。。。。。。。。to total fleet-hours flown.

这句不懂