ノッキング

(1)sound like a car engine that is firing too early; "the car pinged when I put in low-octane gasoline"; "The car pinked when the ignition was too far retarded"

(2)非常に早く点火する車のエンジンのような音

(3)make light, repeated taps on a surface; "he was tapping his fingers on the table impatiently"

(4)明るくし、何度も表面へのタップを繰り返す

(1)