{HEAD ~ A device} for detecting {TAIL ~ knocking} in an internal combustion engine which, when spike noise or noise due to disturbance in the flame in low load running are generated, does not erroneously detect it as knocking 
{ HEAD ~ A device } for detecting { TAIL ~ knocking } in an internal combustion engine which , when spike noise or noise due to disturbance in the flame in low load running are generated , does not erroneously detect it as knocking
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