"That takes a long time to build," Mr. Ceipek said of the analytical materials that firms like LexisNexis have either bought or developed over the years. "it's very difficult to catch up."
“取得这些资料需要很长时间，”希佩克先生提及像LexisNexis这样的公司购买或经过多年开发取得的分析资料时说，“要赶上我们是非常困难的。”
A little critical, analytical thinking is a good thing. Without doubting ourselves sometimes we'd find it difficult to make good decisions.
有一些批判性、分析性思维是一件好事。有时候，不自我怀疑的话，我们就很难做出好的决定。
However, the failure parameter of the generator follows the Gauss distribution, therefore, the analytical study of its reliability is difficult to carry on with the common analytical method.
但是发电机的失效参数为正态分布，因此，其可靠性的分析研究，用一般的解析方法是困难的。
It is mostly very difficult to calculate fuzzy failure probability of mechanical parts by using analytical method according to the model of fuzzy failure probability.
多数情况下，对机械零件的模糊失效概率模型用解析法求其模糊失效概率是极其困难的。
Just the characteristic and complexity of the financial early warning problem itself, make us very difficult to carry on modeling to it with the traditional statistics analytical method.
企业财务危机预警问题本身的特点和复杂性，使其很难用传统的统计分析方法进行建模。
It is a difficult work using the analytical functional theory of boundary value problems to study JSQ-PS model.
用解析函数边值问题理论来分析和研究JS Q - PS模型是一个较难课题，此课题的研究文献中尚无报导。
But it is difficult to calculate sensitivity indices because of calculating derivative, and it is fit to use analytical method to calculate sensitivity indices.
计算灵敏度指标需要计算偏微分，存在一定的困难，且比较适合用解析法。
Analytical solutions for three dimensional elasticity problems are quite difficult to obtain.
三维弹性问题的解析解是很难得到的。
If your squares progress to a cube or box, you're likely to be a very efficient, analytical person who can deal with difficult situations with little fuss.
如果这方形的图案是立方体或者盒子，那么你可能就是非常有效率并且善于分析的人，能很好的解决较困难的问题。
If your squares progress to a cube or a box, you're likely to be a very efficient, analytical person who can deal with difficult situations with little fuss.
如果这方形的图案是立方体或者盒子，那么你可能就是非常有效率并且善于分析的人，能很好的解决较困难的问题。
The derivation of acid base titration error formula is a difficult point as well as an important point in teaching analytical chemistry.
酸碱滴定误差公式的推导是分析化学教学的一个难点，也是一个重点。
Therefore, optimal design problems of complex AT plans for equipment are difficult to be solved by analytical approaches.
因此，解析优化方法在装备的复杂加速试验方案优化设计中难以应用。
It is difficult to determine the mixtures of phenol, m-cresol and thymol directly by routine analytical method since their fluorescent spectra are overlapped closely.
苯酚、间甲酚和百里酚由于光谱重叠严重，用常规的分析法较难直接检测。
For more complex problems, it is difficult to present the analytical solutions and numerical simulation is a kind of effective method.
对于较复杂的现实问题，很难用解析的方法求解，而数值模拟是一种有效的求解方法。
However, due to presence of optical activity, the electrooptic, piezoelectric and photoelastic effects in BSO, it is difficult to get the analytical results.
考虑BSO晶体的旋光性，电光效应、压电效应、弹光效应时，要求解耦合方程得到解析解是不可能的。
Belonging to the American-to-equity options, and the American option has been difficult to accurate pricing for its analytical solution.
转股权属于美式期权，而美式期权一直难有精确解析解为其定价。
Thus, identification and quantification of wine flavor components are difficult. The aim of the review is to present current wine aroma analytical investigation progress on…
作者综述了葡萄酒香气成分气相色谱分析方法的最新研究进展，并展望了今后葡萄酒香气成分的研究方向。
Usually it is very difficult to get an analytical equation of limit state for reliability analysis of the stability of tunnel.
在实际工程可靠度分析中，得到极限状态方程的解析表达式是非常困难的。
It was considered very difficult to correct the analytical bias.
以往认为这种偏倚的校准是非常困难的。
It was considered very difficult to correct the analytical bias.
以往认为这种偏倚的校准是非常困难的。
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