Cup orientation and preparation is challenging when first starting to use this procedure if the surgeon is used to performing THA with the patient in a lateral decubitus position.
如果外科医生经常在患者侧卧位下进行THA，那么当外科医生初次应用该入路进行手术时，臼杯的方向和准备具有挑战性。
While performing the seismic modelling experiment, it needs to have tens to hundreds of kilohertz and well-distributed orientation-dependent narrow pulse acoustic wave as simulation source.
在地震模型实验中，需要获得几十至几百千赫的、方向性较均匀的窄脉冲声波作为模拟震源。
应用推荐