The question of disarmament proved a major stumbling block to agreement.

结果证明裁军问是达成协议的碍。

This paper presents an efficient method of modelling jointed rock by using the boundary ele-ment method via the concept of multiregion and non-linear model of joint and fault.

边界元法广泛应用于岩石力学问的最碍是岩体的非均质及其包含的量节理断层，本文采用多子域思想结合节理断层的非线性模型较好地解决了这。