The design principle of blackbody swallow tail cavity is discussed, its blackbody simulating mathematic equations and the geometric parameters of cavity are given.
讨论黑体燕尾腔的设计原理，写出它的黑体模拟数学式，给出适用腔体的几何参数。
Boundary Element method is a numerical method for solving the mathematic and physics equations.
边界单元法是求解数学物理方程的一种数值计算方法。
A mathematic model of using trajectory equations for firing data is presented.
给出了一种利用弹道方程决定射击诸元的数学模型。
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