更改特定文本字体大小的下标字体大小

Question

我想让下标变小，但前提是文本字体是\scriptsize。有办法吗？到目前为止，我找到的所有减小下标的解决方案都没有带来任何改变。

这是我当前的序言以及一些示例方程式：

\documentclass[12pt]{article}

\usepackage[a4paper, top = 0.8cm, left = 1cm, right = 1cm, bottom = 0.8cm]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{ulem}
\usepackage{graphicx}
\usepackage{multicol}
\usepackage{multirow}
\usepackage{array}
\usepackage{xcolor}
\usepackage{tabularx}

\newcolumntype{C}[1]{>{\centering\arraybackslash}m{#1}}
\newcolumntype{L}[1]{>{\arraybackslash}m{#1}}

\renewcommand{\tabularxcolumn}[1]{m{#1}}
\newcolumntype{Y}{>{\raggedright\arraybackslash}X}

\newcommand\Bstrut{\rule[-1ex]{0pt}{0pt}}
\newcommand{\specialcell}[2][c]{%
    \begin{tabular}[#1]{@{}c@{}}#2\end{tabular}}

\begin{document}
       {\scriptsize 
       \begin{align*}
            F_S &= \text{Schraubenkraft}\\
            F_P &= \text{Plattenkraft}\\
            F_V &= \text{Vorspannkraft}\\
            f_S &= \text{Verkürzung der Schraube}\\
            f_P &= \text{Verkürzung der Platten}\\
        \end{align*}}
\end{document}

目前看起来是这样的：

谢谢！

Answer 1

\RequirePackage{fix-cm}%scalable cm
\documentclass[12pt]{article}

\usepackage[a4paper, top = 0.8cm, left = 1cm, right = 1cm, bottom = 0.8cm]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{ulem}
\usepackage{graphicx}
\usepackage{multicol}
\usepackage{multirow}
\usepackage{array}
\usepackage{xcolor}
\usepackage{tabularx}

\newcolumntype{C}[1]{>{\centering\arraybackslash}m{#1}}
\newcolumntype{L}[1]{>{\arraybackslash}m{#1}}

\renewcommand{\tabularxcolumn}[1]{m{#1}}
\newcolumntype{Y}{>{\raggedright\arraybackslash}X}

\newcommand\Bstrut{\rule[-1ex]{0pt}{0pt}}
\newcommand{\specialcell}[2][c]{%
    \begin{tabular}[#1]{@{}c@{}}#2\end{tabular}}

\DeclareMathSizes
   {8}% Specification of math fonts for this size of surrounding text
   {8}% size of \displaystyle and \textstyle 
   {2}% size of \scriptstyle
   {1}% size of \scriptscriptstyle


\begin{document}
       {\scriptsize  
       \begin{align*}
            F_S &= \text{Schraubenkraft}\\
            F_P &= \text{Plattenkraft}\\
            F_V &= \text{Vorspannkraft}\\
            f_S &= \text{Verkürzung der Schraube}\\
            f_P &= \text{Verkürzung der Platten}\\
        \end{align*}}
\end{document}