As the sparks died away, the sky seemed darker than ever , even frighteningly black.火花散落, 空中越发显着黑, 黑得几乎可怕.Darker roasts, in contrast, have a fuller flavor approaching a bittersweet tang.深度烘焙, 比较而言, 苦甜参半的风味更加浓郁.There was ...
牙拔除术是口腔颌面外科最基本的手术,也是应用最广泛的手术.Extraction of teeth is the most basic and widely used operation of oral and maxillofacial surgery.本文总结了高速涡轮钻在各种类型的阻生智齿拔除术及其他牙槽外科手术中的应用.The application of turbine in extraction of impacted wis...