我想增加行高以正确显示表格中的 N2O/SiH4 比例（见附图）。另外，我希望最后一列的宽度不要根据页面宽度增加。由于我在此报告中使用了多个表格，因此我希望能够为每个特定表格指定。如果您在看完我的 MWE 后仍不清楚这个问题，请告诉我。
\documentclass{report}
%\usepackage[usenames,dvipsnames]{xcolor}
\usepackage{changes}
\usepackage{caption}
\usepackage[justification=centering]{caption}
\usepackage{amssymb}
\usepackage[gen]{eurosym} %proper euro sign
\usepackage{amsmath}
\usepackage{mathtools}
\usepackage{bm} % for \bm macro
\usepackage{mhchem} %allows chemical formulae
\usepackage{siunitx} %allow SI units
\usepackage{cleveref} %smart referencing, automatic sorting etc.
\usepackage{nomencl}
\usepackage{pdfpages}
\makenomenclature
\usepackage{tcolorbox}
\usepackage{tabularx}
\usepackage{array}
\usepackage{colortbl}
\tcbuselibrary{skins}
\tcbset{tab2/.style={enhanced,fonttitle=\bfseries,fontupper=\normalsize\sffamily,
colback=yellow!10!white,colframe=tudelft-sky-blue,
coltitle=black,center title}}
\begin{document}
\begin{tcolorbox}[tab2,tabularx={Y||Y|Y|Y}]
\caption{Oxide fraction estimated by weighing method}
$\bm{\frac{\ce{N2O}}{\ce{SiH4}}}$ & \textbf{Deposition time(min)} & \textbf{Stoichiometry} & \textbf{Oxygen fraction(\%)} \\\hline\hline
$\frac{200}{600}$ & 90 & SiO$_\textrm{\scriptsize 0.72}$ & 42 \\\hline
$\frac{200}{600} $ & 120 & SiO$_\textrm{\scriptsize 0.81}$ & 45 \\\hline
$\frac{250}{600} $ & 90 & SiO$_\textrm{\scriptsize 0.71}$ & 42 \\\hline
$\frac{250}{600} $ & 120 & SiO$_\textrm{\scriptsize 0.80}$ & 44 \\\hline
$\frac{300}{600} $ & 90 & SiO$_\textrm{\scriptsize 0.52}$ & 34 \\\hline
$\frac{300}{600} $ & 120 & SiO$_\textrm{\scriptsize 0.65}$ & 39 \\\hline
$\frac{350}{600} $ & 90 & SiO$_\textrm{\scriptsize 0.71}$ & 42 \\\hline
$\frac{350}{600} $ & 120 & SiO$_\textrm{\scriptsize 0.76}$ & 43 \\
\label{tab:oxidefraction_weighingmethod}
\end{tcolorbox}
\end{document}
答案1
由于不知道Y列类型和颜色tudelft-sky-blue，我建议根据\setcellgapes和\thead命令使用此解决方案进行近似计算makecell。我还简化了您的序言，因为其他包已经加载了一些包。
\documentclass{report}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[dvipsnames, table]{xcolor}
\colorlet{tudelft-sky-blue}{SkyBlue}
\usepackage{changes}
\usepackage{caption}
\usepackage[justification=centering]{caption}
\usepackage{amssymb}
\usepackage[gen]{eurosym} %proper euro sign
\usepackage{mathtools, nccmath}
\usepackage{bm} % for \bm macro
\usepackage{mhchem} %allows chemical formulae
\usepackage{siunitx} %allow SI units
\usepackage{cleveref} %smart referencing, automatic sorting etc.
\usepackage{nomencl}
\usepackage{pdfpages}
\makenomenclature
\usepackage{tcolorbox}
\usepackage{tabularx}
\usepackage{makecell}
\tcbuselibrary{skins}
\tcbset{tab2/.style={enhanced,fonttitle=\bfseries,fontupper=\normalsize\sffamily,
colback=yellow!10!white,colframe=tudelft-sky-blue,
coltitle=black,center title}}
\begin{document}
\setcellgapes{3pt}\makegapedcells
\renewcommand{\theadfont}{\normalsize\bfseries}
\begin{tcolorbox}[tab2,tabularx={>{\centering\arraybackslash}X||c|c|c}]
\captionof{table}{Oxide fraction estimated by weighing method}
\boldmath ${\mfrac{\ce{N2O}}{\ce{SiH4}}}$ & \thead{Deposition\\ time(min)} & \thead{Stoichiometry} & \thead{Oxygen\\ fraction(\%)} \\\hline\hline
$\mfrac{200}{600}$ & 90 & SiO$_\textrm{\scriptsize 0.72}$ & 42 \\\hline
$\mfrac{200}{600} $ & 120 & SiO$_\textrm{\scriptsize 0.81}$ & 45 \\\hline
$\mfrac{250}{600} $ & 90 & SiO$_\textrm{\scriptsize 0.71}$ & 42 \\\hline
$\mfrac{250}{600} $ & 120 & SiO$_\textrm{\scriptsize 0.80}$ & 44 \\\hline
$\mfrac{300}{600} $ & 90 & SiO$_\textrm{\scriptsize 0.52}$ & 34 \\\hline
$\mfrac{300}{600} $ & 120 & SiO$_\textrm{\scriptsize 0.65}$ & 39 \\\hline
$\mfrac{350}{600} $ & 90 & SiO$_\textrm{\scriptsize 0.71}$ & 42 \\\hline
$\mfrac{350}{600} $ & 120 & SiO$_\textrm{\scriptsize 0.76}$ & 43
\label{tab:oxidefraction_weighingmethod}
\end{tcolorbox}
\end{document}
