Three dimensional finite element computing model is established and the effect of stemming length to deep hole bench blasting is studied by three dimensional finite element method.
采用三维有限元数值分析法，通过建立三维有限元计算模型，分析堵塞长度对堵塞区有效应力场的影响。
2
In chapter two we study the transport property of open elliptic quantum dot, and discuss the effect of finitelength lead on the conductance.
第二章我们研究了开口椭圆量子点的传输特性，并讨论了有限长导线对量子点电导曲线的影响。
3
Because word-length of register is finite. It is necessary to consider the question about the finite word-lengtheffect during the devising digit filter.