high-grade fuel

grade-ascending ability / grade ascending ability

commercial grade fuel

low-grade fuel

high-grade guncotton

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

high-speed Diesel fuel

high-antiknock fuel

high-flash fuel

high-octane fuel

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

company (grade) officers (Co Off)

company grade officers

demote from a grade

down grade (adv)

field grade officers

field officer (field-grade officer / senior officer)

grade insignia

inferior grade

junior grade officers

level-crossing = (амер.) grade crossing

lieutenant junior grade

mid-grade officers

pay grade

promote to a grade of

revert to a rank / to the grade of

temporary grade

warrant officer grade I