答案1
如果我理解了你的问题,你可以使用密钥numberless
为未编号的章节设置不同的格式:
\documentclass{book}%
\usepackage{geometry}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{babel}%
\usepackage{fourier}
\usepackage[pagestyles, clearempty]{titlesec}
\usepackage{lipsum}
\titleformat{\chapter}[display]
{\bfseries\huge}
{\filleft\Large\chaptertitlename~\thechapter}
{3ex}
{\titlerule\vspace{1.5ex}\filright}
[\vspace{1ex}\titlerule]
\titleformat{name=\chapter, numberless}[block]
{\bfseries\huge}
{}
{0pt}
{\filright}
\begin{document}
\tableofcontents
\chapter{Estimation, Propagation and Validation of Measurement Uncertainty}
\lipsum[1-6]
\end{document}