常见例句USING POLYHEAD OPERATIVE SUTURE IN FREE PORCINE ATRIAL SEPTUM DEFECT OPERATION MODEL 多针头手术缝线在猪房间隔缺损手术模型中的应用multilayer polyhead 多层聚合头部single layered polyhead 单层聚合头部multilayered polyhead 多层聚合头部 返回 polyhead