The Barrier Penetration Model has been used to calculate the heavy ion fusion cross section and it does give a good description of the experimental data in existence.
本文利用势垒穿透模型计算重离子融合反应截面，我们发现理论计算结果同现有的实验数据符合得相当好。
2
In basis of analyzing the features of the conventional arc welding technology, a DC low-frequency plasma welding power with fusionpenetration is selected as the heat source for metal forming.
本课题在分析常规弧焊技术特点的基础上，选取熔透式低频直流等离子弧焊电源作为成形的热源。
3
Based on the analysis of site welding, the main welding defects are lack penetration, lack fusion, slag inclusion and porosity.