percussion meaning in Chinese
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- Diamond drilling replaced percussion drilling .
- Percussion of the abdomen is often omitted .
- The invention of percussion compositions for igniting powders is usually attributed to forsyth .
- Chest percussion and vibration are used with postural drainage to help dislodge secretions .
- The use of caseless propellant charges as the power source for projectiles and for explosive percussion tools such as nailguns is now established .