短语词组短语ceruminal impaction 耵聍嵌塞;[耳鼻喉]耵聍栓塞inertial impaction 惯性碰撞;惯性撞擎;惯性撞击ruminal impaction 瘤胃积食omasum impaction 瓣胃阻塞Stool impaction 大便嵌塞horizontal impaction [口腔]水平阻生gizzard impaction 肌胃阻塞impaction retractor 阻生牙牵开器 返回 impaction