尽管研究细节十分复杂，且仍然有待深入讨论。

The details are complicated and still a matter of debate.

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但由于柔性体碰撞问题的复杂性，目前的研究还有待深入。

The impact problem about flexible bodies has not deeply investigated because of its complexity.

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但目前有许多涉及分段问题的概念和认识还有待深入的讨论。

However, many conceptions and understandings concerning fault segment and segmentation need to be further discussed at present.

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