Penetration performance in surface layer of concrete target was analyzed by stress wave damage theory, calculating method base on "simplified equivalent resistance line" was presented.
从应力波表层损伤理论分析了混凝土表层“开坑区”的侵彻特性，提出“简化等效阻力线”的计算方法；
2
The leakage of microstrip line has two forms: the surfacewave form and the space wave form, and the higher order modes on microstrip line mostly leak as space wave form.
微带线泄漏一般分为表面波形式和空间波形式两类，其中微带线高次模泄漏一般以空间波的形式发生。
3
This paper describes 3-D curved surface, such as wave-surface etc, on 2-D plane by using hidden-line method.