急求：威布尔函数怎么用？！！！！
<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">做数学建模中遇到威布尔函数，想知道是怎么回事，怎么用它。谢了！！！！</span><span lang="EN-US" style="FONT-FAMILY: 宋体;"><p></p></span></p>
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