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A term usually used in Military applications, and often abbreviated to just CH (or Charlie-Hotel in phonetics.) Is is often looked upon as the second smallest possible unit of measurement outside of Scientific applications, the smallest being a Red Cunt Hair (RCH/Romeo-Charlie-Hotel.) It holds no exact translation into either the US Standard or the Metric Systems, and is an extremely variable term. The closest possible definition is: an approximation of an extremely small increment.
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