deletions | additions       diff --git a/layout.md b/layout.md  index e766f7d..67693a3 100644  --- a/layout.md  +++ b/layout.md 
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section_Penetrator_What_kind_of__.tex  subsection_Drilling_Methods__.tex  delete__.tex  subsubsection_Chemical_Drilling__.tex delete__1.tex  subsubsection_Explosive_Drilling__.tex  subsubsection_Sputtering__.tex  subsubsection_Laser_Drilling__.tex