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.
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.
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.
地质体材料的破坏演化过程是地质灾害防治工程中亟待解决的关键科学问题，也是力学的前沿课题。
The failure progress of geological material is a key scientific problem in the engineering of geological hazard and control, and is also a frontal problem in mechanics.
地质体材料的破坏演化过程是地质灾害防治工程中亟待解决的关键科学问题，也是力学的前沿课题。
The failure progress of geological material is a key scientific problem in the engineering of geological hazard and control, and is also a frontal problem in mechanics.
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