Glossary/TR-9
From scientopedia
TR-9
Abbreviation for a drill to make students able to maintain tone 40 under any stress or duress.
Definitions
a drill to make students able to maintain tone 40 under any stress or duress.(HCOB 7 May 68)
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- This page was last edited on 11 December 2025, at 16:26.
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