21 lines
673 B
TeX
21 lines
673 B
TeX
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\documentclass[10pt,a4paper,final]{report}
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\usepackage[utf8]{inputenc}
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\usepackage{amsmath}
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\usepackage{amsfonts}
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\usepackage{amssymb}
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\usepackage{fontspec}%使用xetex
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\setmainfont[BoldFont=黑体]{宋体} % 使用系统默认字体
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\XeTeXlinebreaklocale "zh" % 针对中文进行断行
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\XeTeXlinebreakskip = 0pt plus 1pt minus 0.1pt % 给予TeX断行一定自由度
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\linespread{1.5} % 1.5倍行距
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\begin{document}
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\begin{equation}
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\begin{aligned}
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\frac{\partial P_{ij}}{\partial V_i}
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&=
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-V_{ij}(g_{ij}cos\theta_{ij}+b_{ij}sin\theta_{ij})+
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2(g_{ij}+g_{si})V_i
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\end{aligned}
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\end{equation}
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\end{document}
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