1. Wear of the polyethylene counterface results in osteolysis and impingement, both of which culminate in aseptic loosening. 聚乙烯界面磨损导致骨溶解和撞击综合症，最终发展为无菌性松动。
2. Experimental and numerical simulation results were presented to describe the flow behavior in the channel with staggered jet impingement arrangement. 用实验和数值模拟的方法，研究了在错排冲击孔作用下的受限通道的流场结构。
3. The M16 is a lightweight, 5. 56 mm caliber, air-cooled, gas-operated, magazine-fed rifle, with a rotating bolt, actuated by direct impingement gas operation. M16是一支轻型，口径为5。56毫米，风冷，气动弹匣步枪，由高压气体通过导气管直接推动机框操作启动的转动式枪机。
英英解释
n.
1. influencing strongly
2. a sharp collision produced by striking or dashing against something
