Prediction of reservoir parameters is always the bottle neck problem and difficulty in seismic survey.

储层参数预测一直是地震勘探的关键和难点问题。

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Distribution of reservoir physical parameter is always the bottleneck problem and difficulty of reservoir description.

物性参数的分布一直是油藏描述的关键问题和难点。

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Distribution of the reservoir physical parameter always is the bottleneck problem and difficulty of reservoir description.

储层物性参数的展布一直是油藏描述的关键问题和难点。

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So as you can see, as we escalate the problem difficulty, the difference between the good method and the not quite as good method gets bigger and bigger and bigger.

如你所见，当我们处理更复杂的,问题的时候，优良的算法,和并不那么好的算法之间的,差异会变的越来越大，这一点很重要。

麻省理工公开课 - 计算机科学及编程导论课程节选

And the difficulty was basically the problem of duplication.

提出了一个难题，这难题就基于复制。

耶鲁公开课 - 死亡课程节选

Manpower was the real problem, and in particular the difficulty of persuading engineers and skilled tradesmen to leave the United States to dig a ditch in a fetid tropical swamp.

ECONOMIST: American canal building

In Healy's opinion, electronic gaming at a young age can lead to shorter attention spans, a lack of internal motivation, difficulty with problem solving and a lack of creativity.

FORBES: Baby Frankenstein

One problem highlighted in the story (and the conference) is the difficulty many green energy companies are having in finding sufficient capital.

FORBES: The Day Bill Gates Was The Answer To His Own Question