датчик детонації
knock a tank
audible knock
big-end knock
borderline knock curve
engine knock / knocking
high-knock rating gasoline
knock detection by ear
knock indicator
knock off balance
knock tendency
knock test of gasoline
knock-down power
knock-free operation
knock characteristic (of gasoline)
knock-free fuel
knock-down fence
knock out of action
knock out of the war
flow meter
radiac meter
survey meter
Venturi meter
air meter
contamination meter
detonation meter
visibility meter
yaw meter
airspeed meter
density meter
g-meter
icing-rate meter
meter-kilogram-second-ampere system (MKSA)