很重要的是要注意，如果估计中不存在偏置，那么有可能是一半估算值高，一半低。
It is important to note that if there is no bias in the estimates, then half of the estimates are high and half are low.
项目估算工具根据可用信息提供工作及持续时间的估计。
Project estimation tools provide estimates of effort and duration based on the available information.
但拆解并没有计入设计，软件，生产和运输的成本。这样的开销估算填补了对每一台售出设备的利润估计的空白。
And while a teardown doesn't account for the costs of design, software, manufacturing, or shipping, these cost estimates help fill in the blanks toward estimating the profit on each device sold.
假设估算的任务持续时间是3个月，并且估计的方差是1 个月。
Suppose the estimated duration of a task is 3 months, and the variance of the estimate is 1 month.
例如，我们用艾滋病死亡率数据估算到印度艾滋病毒感染人群可能是40%，低于以前的估计。
For example, we worked backward from AIDS mortality data to estimate that the number of HIV-infected people in India may be 40% less than previous estimates.
在切断立管后的第一次流量估算中，技术组下的一个团队在研究了海底拍下的录像后给出了的保守估计数据为至少在每天12000至25000桶之间。
In its first estimate since the cut, one of the technical group's teams, looking at video feeds from the sea floor, offered a conservative estimate of at least 12, 000 to 25, 000 barrels a day.
官方估计，基础设施和农业损害总计高达2.4亿美元，他们估算旅游业损失每天至少一百万美元。
Officials reckon the damage to infrastructure and farming totalled $240m. They estimate the losses to the tourist industry will be at least $1m a day.
优化器将选择该查询计划，因为其执行的估算成本是所有被估计划中最低的。
The optimizer chose this query plan because the estimated cost for its execution was the lowest among all the evaluated plans.
穆勒的成本估算可能偏高了——例如，他们的估计中甚至包括了人们在警戒线等待时间的机会成本。
Mueller's cost estimates may be on the high side - they include, for example, the opportunity costs of all the hours people spend waiting in security lines.
要是先来一道甜品——一小块巧克力蛋糕，实验对象估计其热量约为416卡路里，他们会觉得一份奶酪牛排的热量不会比这道甜品多多少，于是估算出来牛排的热量只有489卡路里。
But when first shown the vice of a slice of chocolate cake, which they guessed had 416 calories, subjects estimated that the same cheese-steak wasn't much worse of a vice, at only 489 calories.
广东省劳动部估计11%的工人在节后没有返厂，一些其它的估算认为这一比例高达30%。
The Guangdong Labor Ministry reckons 11% of the workers did not return after the holiday; other estimates are as high as 30%.
的士费用估算网站，提供美国和加拿大境内从一城市到另一城市的的士费用估计。
An easy to use taxifare estimator that predicts the cost of a taxi from one destination to the next inside major US and Canadian cities.
测试的第一部分，只能依赖视觉估计，挺糟糕的是，物体都被过度高估了斜度，把斜度31估算成更陡峭的50度。
In the first part of the test, which relied on visual cues alone, subjects badly overestimated, interpreting a 31-degree slant as a much steeper, 50-degree one.
海岸警卫队表示：“估计每天以5000桶（21万加仑）的油量渗出海面，但难以断定估算的准确性。
The coastguard says that oil is being added at a rate of 5, 000 barrels (210, 000 gallons) per day, an estimate which is hard to assess.
系统采用具有自适应补偿的电压模型估算定子磁链，PI自适应法估计转速。
The stator flux is estimated by adaptive compensated voltage model, and the speed is estimated with PI adaptive method.
他们采用一种叫做“概率估计”的统计方法-概率被分配到估算的和未知的数字。
They use a statistical technique called probabilistic estimation in which probabilities are assigned to estimated or unknown figures.
在对畜牧业物质消耗、畜牧业劳动投入量估算的基础上，对1982～ 1998年福建省畜牧业生产函数进行估计；
On the basis of estimating the material expense and the input amount of labor force in animal husbandry, the animal husbandry production function in Fujian Province from 1982 to 1998 was estimated.
因此，我们需要一个基本的估算方法，将使我们能够估计各种情况。
We therefore need a basic estimation approach that will allow us to make estimates for a wide range of situations.
对肠型放射病患者A的剂量估算是迄今采用骨髓进行常规CA分析估计事故病人受照剂量的最高记录。
The estimated dose by conventional CA analysis in bone marrow of patient A in the present study is the highest among all of the radiation accident patients.
尤以用带皮材积公式估算去皮材积比用去皮材积公式估计要准确，平均只小2.3%。
For debarked trees, the volume equation for trees with barks was actually more accurate, underestimating volume at average rate of 2.3%.
在该编码方案中，运动矢量的获取采用了可变块大小的多分辨运动估计算法，运动估算在小波域中进行。
In the scheme, 2-d motion vectors are obtained by a variable block-size multiresolution motion estimation algorithm and motion estimation is realized in the wavelet domain.
到底有多少原住民离开津巴布韦，还没有很可靠的估计，一些人估算说两百万到四百万。
There are no reliable estimates of how much of the original population has left. Some estimates range from 2 million to 4 million;
对基于连续运行GPS观测网络的对流层天顶延迟估算模型和参数的选择，及其对估计结果的影响进行研究。
The effects of various models and parameters in estimating the tropospheric zenith delay based on the continuous operation of GPS references network are studied.
在估计机载航电系统费用时，对数线性回归估算关系式存在许多问题。
There exist many problems for the logarithm linear regression formulations during estimating the cost of airborne avionics system.
油气井测试过程中，处理地面数据的常用方法是估计估算、查表插值的手工法，这种方法既繁琐且误差大。
In the process of well test, the manual methods, estimating method and interpolation by chart, are usually used to deal with surface data, which are tedious and have great errors.
准备详细的书面报告，估计属性值，成本，概述的方法，估算了，并满足评价标准。
Prepare detailed written reports that estimate property values, costs, outline methods by which the estimations were made, and meet appraisal standards.
本文论述用声波时差测井估计异常地层压力的大小，阐述了三个观点：1。估算异常地层压力的一般公式；
This paper described a method of estimating abnormal formation pressures, and discusses the following: (1) conventional formula of estimating abnormal formation pressures;
然而，这些方法都是根据样本的变异数或报酬的共变异数估算的估计值。
However, these methods are estimated according to sample variance and covariance estimators of returns.
文中在总结各种威胁评估计算方法的基础上，提出了作战双方在不同性能条件下的一种简单实用的威胁评估算法。
This paper, based on many threaten assessment documents, proposed a simple and a practically method to calculate the threaten be between every side in combating under various ability.
文中在总结各种威胁评估计算方法的基础上，提出了作战双方在不同性能条件下的一种简单实用的威胁评估算法。
This paper, based on many threaten assessment documents, proposed a simple and a practically method to calculate the threaten be between every side in combating under various ability.
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