high-antiknock fuel

antiknock dopes for diesel fuel

antiknock antagonists

antiknock gasoline

antiknock susceptibility

high altitude-high opening (HAHO)

high pay-off target / high-payoff target (HPT)

high-burst / high burst (HB)

high road; high-road

high-power illuminator radar / high power illuminating radar (HIPIR)

high-performance / high performance

high-speed Diesel fuel

high-flash fuel

high-grade fuel

high-octane fuel

Proton Exchange Membrane Fuel Cell (PEM fuel cell, PEMFC)

anticyclone, high-pressure area

blasting explosive (normal-, high-, low strength)

Estimation and Prediction of Orbits and Clocks to High Accuracy (EPOCHA)

freedom of the high seas

HEAT (high explosive anti-tank)

high aerodynamic efficiency

high altitude

high altitude-low opening (HALO)

high- and low-altitude surveillance

high dynamic range atom (HiDRA )

high expansion-ratio

high explosive (HE)

high explosive (HE) filler

high explosive antipersonnel

high explosive antitank and antipersonnel head

high explosive antitank head

high explosive antitank projectile (HEAT proj)