Also known as: hh.
HH has various meanings in the Army & Military category. Discover the full forms, definitions, and usage contexts of HH in Army & Military.
Twenty-fourth part of a day Interval in which the hour angle of a heavenly body changes 15deg in respect to the hour circle of an observer Arc of 15deg of Equinoctial.
Army & MilitaryPossible to hold in the hand.
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