矩形脉冲，三角形脉冲，正弦脉冲的震动谱仅与t1（脉冲时间）与自振周期的比值有关，程序只要输入t1/T，即可查到对应的震动谱值。而且给出了简单的作图。-Rectangular pulse, triangle pulse, sine shock pulse spectrum only with t1 (pulse time) and the ratio of natural period related to the program as long as the input t1/T, can be