因此，它不可能做出精确的估计。
古董的价格很难被精确的估计。
It is difficult to assess the price of antique with great accuracy.
实验结果表明，该方法可以取得较为精确的估计效果。
The experimental results demonstrate that this method is effective and promising.
然而科学家还没弄清楚生物视觉系统为何能如此精确的估计模糊程度。
But scientists didn't know how biological visual systems estimate blur so well.
根据最近由科学家作出的，到目前为止最精确的估计，自然界共含有870万个生物物种。
The natural world contains about 8.7 million species, according to a new estimate described by scientists as the most accurate ever.
因此，为了能更精确的估计电机转速，设计了定子电阻和转子电阻的在线辨识模块。
Therefore, in order to estimate speed more accurately, blocks of stator resistance and rotor resistance online identification were designed.
知道了它的质量(0.0021地球质量)之后，他们得以更精确的估计它的大小。
And by knowing its mass (0.0021 Earths), they could more accurately gauge its size.
这个担心很对，但是可以用现有的大量的商业预测技巧来对未来的情况做出最精确的估计。
While this is a legitimate concern, it is also possible to use a whole range of business prediction techniques currently available to estimate future circumstances as best as possible.
研究了一类整系数二阶线性微分方程解的幂和导函数的不动点和超级等问题，得到了一些精确的估计。
By using the factorization of meromorphic functions and the growth estimation of the modual, we obtain precise estimation of the order of growth and hyper-order of solutions of the equations.
通过测试直流电机内阻和反电动势系数随电机电流的变化曲线，从而得到电机转速更精确的估计表达式。
A more accurate estimate expression is obtained by testing the curve of DC motor internal resistance and back-EMF coefficient which changes with the motor current.
同样，这时的估计并不需要多么的精确，因为在很多情况下，精确的估计并不是需要的，甚至有时是不可能的。
Once again, an estimate is appropriate since it is rarely the case that high levels of precision are possible or necessary.
约翰逊的团队目前正在进行一项由美国海军研究办公室提供资金的更大型的研究，希望运用更广泛的数据更精确的估计军事和民事的灾祸。
Johnson's group is now working on a larger study funded by the United States Office of Naval Research, hoping to estimate military and civilian fatalities more accurately with more comprehensive data.
因为要做好工作，确实需要精确地估计每个分区需要多少空间，所以硬盘驱动器分区可能是非常烦人的事。
Hard drive partitioning can be annoying because to do a good job you really need to accurately estimate how much space you'll need for each partition.
统计视图和REOPT都使优化器可以计算出更精确的基数估计，而后选择一个最佳查询执行计划。
Both statistical views and REOPT allow the optimizer to compute a more accurate cardinality estimate and consequently choose an optimal query execution plan.
我们还需要开发出精确的方法，用于估计和预测国内和全球市场的生物燃料需求。
We still need to develop accurate ways to estimate and project biofuel demand in domestic and global markets.
这些计算结果都是采用各国的最高可能预算估计值，精确的开支水平并不清楚。
These calculations were made using the highest possible budget estimates for these countries, whose precise spending levels are unknown.
现实主义者则与其相反，仅会对事情的可能性作出非常精确(有时过于保守，以期安全)的估计。
The realist, in contrast, estimates exactly what is possible (sometimes a little less, just to be safe).
优化器凭借精确的基数估计值来准确计算出每一个待定查询访问计划的成本。
The optimizer is dependent on accurate cardinality estimates to properly compute the cost of each query access plan considered.
对于开发任何软件来说，精确估计开发过程所需要的努力是不可能的，特别是在初期阶段。
It is impossible, particularly in the early phases, to accurately estimate the effort involved in developing any non-trivial piece of software.
优化器凭借精确的基数估计值来准确计算出每一个待定查询访问计划的成本。
The optimizer depends on accurate cardinality estimates to properly compute the cost of each query access plan considered.
正如波斯纳强调的，要精确估计高度偶发事件的实际发生概率是非常困难的，这次的漏油事件就是属于这类事件。
As Posner emphasizes, it is very difficult to estimate with any precision what is the actual probability of highly infrequent events, and such a leak would fall within this class.
敏捷设计反对这个观点，因为人们倾向于过高地估计他们在早期制定精确决策的能力，因而他们将遭受不断扩大的后果。
Agile design objects to this notion because people tend to overestimate their ability to make accurate decisions early, and they suffer the ever-expanding consequences later.
精确的影响还很难估计，尤其是因为新法交给监管者很多判断。
The precise impact is hard to gauge, not least because the new law hands a lot of discretion to regulators.
从2006年开始，他们就在寻找一种基因信号，这种基因信号，在人们刚开始被某种病毒感染，还没有出现明显临床表现的时候就能精确地估计疾病。
Since 2006, they've been hunting for a genetic signature that can accurately assess, well before symptoms appear, whether someone's been infected with a virus.
NASA的雷达天文学家周五发现了它的轨迹，并立即将它的位置精确至一公里以内的区域，比此前最好的估计精确了50倍。
NASA radar astronomers picked up its track on Friday and were immediately able to narrow its position to within one kilometer — 50 times better than their previous best estimate.
为了避免有人说我们的估计是伪精确的，我们将表中估计出的债务负担四舍五入到末尾最接近于百分之五的那个数字。
To avoid charges of spurious accuracy, we have rounded down our estimate of the stable debt burden to the nearest five percentage points.
玩家的目标总数量：必须精确地估计将玩这个游戏的玩家数量。
Target number of total players: The number of players who will buy the game and play it must be estimated accurately.
玩家的目标总数量：必须精确地估计将玩这个游戏的玩家数量。
Target number of total players: The number of players who will buy the game and play it must be estimated accurately.
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