我想使用\mathsf带有mathpazo+的粗体（或更好的半粗体）字体eulervm。但是，仅使用这两个包似乎不存在这种可能性（请注意，在下表中，我在包的帮助下检查了不同（它们真的不同吗？）的可能性bm）：
\documentclass[11pt]{standalone}
\usepackage[T1]{fontenc} % especially for non-english languages
\usepackage[utf8]{inputenc}
\usepackage[english]{babel} % spanish,english
% AMS
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{booktabs}
%\usepackage{lmodern}
\usepackage[sc]{mathpazo} % add possibly `sc` and `osf` options
\usepackage{eulervm} % Euler math
\usepackage{bm}
% ----------------------------------------------------------------
\begin{document}
\begin{equation*}
\begin{array}{rccccc}
&\text{*} & \text{\texttt{\textbackslash bm\{*\}}} & \text{\texttt{\textbackslash bm\{\{*\}\}}} & \text{\texttt{\textbackslash boldsymbol}} & \text{\texttt{\textbackslash hm\{*\}}}\\
\text{\texttt{\textbackslash mathnormal}} & \mathnormal{a} & \bm{\mathrm{\mathnormal{a}}} & \bm{{\mathrm{\mathnormal{a}}}} & \boldsymbol{\mathrm{\mathnormal{a}}} & \hm{\mathrm{\mathnormal{a}}}\\
\text{\texttt{\textbackslash mathrm}} & \mathrm{a} & \bm{\mathrm{a}} & \bm{{\mathrm{a}}} & \boldsymbol{\mathrm{a}} & \hm{\mathrm{a}}\\
\text{\texttt{\textbackslash mathbf}} & \mathbf{a} & \bm{\mathbf{a}} & \bm{{\mathbf{a}}} & \boldsymbol{\mathbf{a}} & \hm{\mathbf{a}}\\
\text{\texttt{\textbackslash mathsf}} & \mathsf{a} & \bm{\mathsf{a}} & \bm{{\mathsf{a}}} & \boldsymbol{\mathsf{a}} & \hm{\mathsf{a}}\\
\text{\texttt{\textbackslash mathit}} & \mathit{a} & \bm{\mathit{a}} & \bm{{\mathit{a}}} & \boldsymbol{\mathit{a}} & \hm{\mathit{a}}\\
\text{\texttt{\textbackslash mathtt}} & \mathtt{a} & \bm{\mathtt{a}} & \bm{{\mathtt{a}}} & \boldsymbol{\mathtt{a}} & \hm{\mathtt{a}}\\
\text{\texttt{\textbackslash mathcal}} \\
\end{array}
\end{equation*}
\begin{alignat*}{4}
\quad &\text{*} \quad& \text{\texttt{\textbackslash bm\{*\}}} \quad& \text{\texttt{\textbackslash bm\{\{*\}\}}} \quad& \text{\texttt{\textbackslash boldsymbol}} \quad& \text{\texttt{\textbackslash hm\{*\}}}\\
\quad & A \quad & \bm{A}\quad & \bm{{A}} \quad & \boldsymbol{A} \quad & \hm{A}\\
\text{\texttt{\textbackslash mathnormal}} \quad & \mathnormal{A} \quad & \bm{\mathrm{\mathnormal{A}}}\quad & \bm{{\mathrm{\mathnormal{A}}}} \quad & \boldsymbol{\mathrm{\mathnormal{A}}} \quad & \hm{\mathrm{\mathnormal{A}}}\\
\text{\texttt{\textbackslash mathrm}} \quad & \mathrm{A} \quad & \bm{\mathrm{A}} \quad & \bm{{\mathrm{A}}} \quad & \boldsymbol{\mathrm{A}} \quad & \hm{\mathrm{A}} \\
\text{\texttt{\textbackslash mathbf}} \quad & \mathbf{A} \quad & \bm{\mathbf{A}} \quad & \bm{{\mathbf{A}}} \quad & \boldsymbol{\mathbf{A}} \quad & \hm{\mathbf{A}} \\
\text{\texttt{\textbackslash mathsf}} \quad & \mathsf{A} \quad & \bm{\mathsf{A}} \quad & \bm{{\mathsf{A}}} \quad & \boldsymbol{\mathsf{A}} \quad & \hm{\mathsf{A}} \\
\text{\texttt{\textbackslash mathit}} \quad & \mathit{A} \quad & \bm{\mathit{A}} \quad & \bm{{\mathit{A}}} \quad & \boldsymbol{\mathit{A}} \quad & \hm{\mathit{A}} \\
\text{\texttt{\textbackslash mathtt}} \quad & \mathtt{A} \quad & \bm{\mathtt{A}} \quad & \bm{{\mathtt{A}}} \quad & \boldsymbol{\mathtt{A}} \quad & \hm{\mathtt{A}} \\
\text{\texttt{\textbackslash mathcal}} \quad & \mathcal{A} \quad & \bm{\mathcal{A}} \quad & \bm{{\mathcal{A}}} \quad & \boldsymbol{\mathcal{A}} \quad & \hm{\mathcal{A}} \\
\text{\texttt{\textbackslash mathfrak}} \quad & \mathfrak{A}\quad & \bm{\mathfrak{A}}\quad & \bm{{\mathfrak{A}}} \quad & \boldsymbol{\mathfrak{A}} \quad & \hm{\mathfrak{A}}\\
\end{alignat*}
\end{standalone}
但是，经过一些实验，我发现如果我也加载lmodern（取消注释相应的行），那么我会在该\mathsf行中获得粗体版本。鉴于所有这些，我的问题如下：
\mathsf是否有一种仅使用mathpazo+即可获得粗体效果的正确方法eulervm？\mathsf如果是这样，是否仅使用mathpazo+就可以获得半粗体eulervm？\mathsf如果不是，那么使用mathpazo+获得半粗体的最佳方法是什么eulervm？- 如果没有比加载更好的策略
lmodern，我怎样才能获得半粗体\mathsf？
最后，如果能用不太长的篇幅解释一下这些东西是如何工作的，我会非常高兴听到。任何关于这方面的好参考资料也欢迎。
谢谢！