percussion mechanism meaning in Hindi

• आघात यंत्रावली • आघात-यंत्र • आहनन-यंत्र

percussion: तालवाद्य तबला आदि
mechanism: क्रियाविधि तंत्र

In addition, experience showed that the percussion mechanism in time fuzes, which burst the shrapnel shell on impact if the timer failed, had to be removed because AA shells could land among friendly troops and nearby civilians.