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我正在嘗試做一張桌子。它不提供輸出。沒有錯誤

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我正在嘗試做一張桌子。它不提供輸出。沒有錯誤 
\begin{center}


\begin{tabular}{ c c c c c c c c c }


  &  & Line Winding & Valve Windiing & Valve Windiing \\ 

 Rated Voltage &  &  & Star & Delta \\  
  Rated voltage at tap \ddag 0, phase to earth & {$kV_{rms}$} & {$525/\sqrt3$} & {$210.4/\sqrt3$} & 210.4\\
Rated power {$(S_{N2w})$} & MVA & 297.5 & 297.5 & 297.5\\ 
Current ratings, bipolar operation &  &  &  &\\
 Rated continuous current, without redundant & {$A_{rms}$} & 982 & 2449 & {$2449/\sqrt3$}\\
cooling in service, at nominal tap &  &  &  & \\
Line winding tap changer regulating range &  &  &  &  \\
Number of steps &  & +25/-5 &  &  \\
\end{tabular}
\end{center}

答案1

為了讓您的表格看起來更好，我建議您按照以下範例中所示的行更改程式碼。它在 pdfLaTeX、LuaLaTeX 和 XeLaTeX 下應該同樣可以很好地編譯。

在此輸入影像描述

\documentclass{article}
\usepackage[english]{babel}
\usepackage{geometry,booktabs,siunitx,amsmath,ragged2e,tabularx}
\newcolumntype{C}{>{$}c<{$}} % automatic inline math mode
\newcolumntype{Y}{>{\RaggedRight\hangafter=1\hangindent=1em}X}
\begin{document}

\noindent
\begin{tabularx}{\textwidth}{@{} YlCCC @{}}
Rated Voltage & 
& {\text{Line Winding}} & {\text{Valve Winding}} & {\text{Valve Winding}} \\ 
& & & {\text{Star}} & {\text{Delta}} \\  
\midrule
Rated voltage at tap $\ddag0$, phase to earth 
& $\si{\kilo\volt}_{\mathrm{rms}}$ & 525/\sqrt3 & 210.4/\sqrt3 & 210.4\\
Rated power $(S_{N2w})$ 
& \si{\mega\watt} & 297.5 & 297.5 & 297.5\\ 
\addlinespace
Current ratings, bipolar operation\\
Rated continuous current, without redundant cooling in service, at nominal tap  
& $\si{\ampere}_{\mathrm{rms}}$ & 982 & 2449 & 2449/\sqrt3\\ 
\addlinespace
Line winding tap changer regulating range \\
Number of steps &  & +25/{-}5 &  &  \\
\end{tabularx}

\end{document}

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