胚胎干细胞研究是组织工程基本科学问题中一个重要的组成部分。

The research on embryonic stem cells is an important part involved in the study of basic scientific problems of tissue engineering.

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已经建立的各种理论和方法旨在使经典力学与近代计算科学结合，以程序化地处理工程技术中的各种动力学问题。

Various theories and methods have been established, combining the classic mechanics with the modern computer science, in order to solve the actual dynamical problems in the engineering practice.

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特别是在我国通常采用微机的硬件条件下，用边界元法求解比较复杂的工程与科学问题遇到很大的困难。

Therefore it is difficult to solve practical complex engineering and scientific problems using BEM, especially in the PC computing environment widely applied in our country.

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Engineering is about problem-solving.

工程学是一门解决问题的科学。

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