The data is complex, but we understand the structure very well.
数据是复杂的，但我们对结构的了解很充分。
Using complex structure finite element analysis, the theoretical prediction conforms with the experimental results very well, the equivalent model is reasonable, and the method is correct.
所建模型经复杂结构有限元方法分析，结果和试验相吻合，表明等效模型是合理的，方法是正确的。
Since the 21st century, in order to adapt to the demand of modern petroleum exploration, complex structure well has become the industry forefront and key technology of the international petroleum.
21世纪以来，为适应现代油气勘探开发需求，复杂结构井已经成为当前国际石油工业的前沿与关键性技术。
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