我已经设置了memoir具有以下页面布局（MWE）的文档：
\documentclass[%
a4paper,
10pt,
twoside,
]{memoir}
%%% Layout the Page %%%
\setstocksize{297mm}{210mm}
\settrimmedsize{\stockheight}{\stockwidth}{*}
\setulmarginsandblock{27.4mm}{*}{1}
\setlrmarginsandblock{24mm}{79mm}{*}
\setmarginnotes{9mm}{50mm}{1em}
\setheadfoot{1.25\baselineskip}{10mm}
\setheaderspaces{*}{8mm}{*}
\checkandfixthelayout[fixed]
\begin{document}
MWE
\end{document}
日志给了我这个高度和宽度：
******************************************************
Stock height and width: 845.04684pt by 597.50787pt
Top and edge trims: 0pt and 0pt
Page height and width: 845.04684pt by 597.50787pt
Text height and width: 689.1258pt by 304pt
Spine and edge margins: 68.2866pt and 224.77676pt
Upper and lower margins: 77.96053pt and 77.96053pt
Headheight and headsep: 15pt and 22.76219pt
Footskip: 28.45274pt
Columnsep and columnseprule: 10pt and 0pt
Marginparsep and marginparwidth: 25.60747pt and 142.26378pt
Sidecapsep and sidecapwidth: 7pt and 117pt
Sidebarhsep and sidebarwidth: 7pt and 117pt
Sidebarvsep and sidebartopsep: 12pt and 0pt
Sidebarheight: 596.39996pt
Sidefoothsep and sidefootwidth: 7pt and 117pt
Sidefootvsep and sidefootheight: 12pt and 596.39996pt
******************************************************
我想确定字体和铅芯大小以及测量值，例如memoir手册章节“术语”中给出的数值。那么我猜对于 10pt 字体和 12pt 铅芯大小来说，这将是 10/12？实际上，我如何确定铅芯大小？
最后，我如何确定文本行的度量，即长度？这是 304pt（长度中给出的文本宽度）除以 12（点/pica），因此 304/12 = 25.333pc？