percussion meaning in English
n.
1.敲打，叩击；撞击；碰撞。
2.(由敲打产生的)震动。
3.【音乐】打击；(乐队的)打击乐器组。
4.【军事】击发(装置)。
5.【医学】扣诊(法)。
Examples
- Diamond drilling replaced percussion drilling .
金钻探取代了冲击钻探。 - Percussion of the abdomen is often omitted .
腹部叩诊常被省略。 - The invention of percussion compositions for igniting powders is usually attributed to forsyth .
通常认为用以引燃的击发药是弗尔赛思发明的。 - Chest percussion and vibration are used with postural drainage to help dislodge secretions .
在做体位引流时要敲击和振动胸部帮助分泌物松动排出。 - The use of caseless propellant charges as the power source for projectiles and for explosive percussion tools such as nailguns is now established .
目前，用无壳药柱作为弹丸及火药推进器（如铆钉枪）的能源已被认定。