大家好，现在附上几张详细的谱图，请问下如何计算出RSD值，需要详细的解答。
[img=,690,469]https://ng1.17img.cn/bbsfiles/images/2019/08/201908191133282321_2753_1791505_3.jpg!w690x469.jpg[/img][img=,690,521]https://ng1.17img.cn/bbsfiles/images/2019/08/201908191133307881_9600_1791505_3.jpg!w690x521.jpg[/img][img=,690,512]https://ng1.17img.cn/bbsfiles/images/2019/08/201908191133341009_8532_1791505_3.jpg!w690x512.jpg[/img][img=,690,500]https://ng1.17img.cn/bbsfiles/images/2019/08/201908191133366402_2930_1791505_3.jpg!w690x500.jpg[/img]