The atheromatous plaque were detected in CCA ( 64.2 % ) and BIF ( 29.4 % )斑块发生部位以CCA最多 ( 64.2% ) ,其次是BIF ( 29.4% ).Objective To explore the surgical treatment of congenital choanal atresia ( CCA ) .目的探讨先天性后鼻孔 闭锁 的手术时机和手术...
充填料以银汞合金为好.The best filling material is silver amalgam.通过试验, 优化了碎石胶结充填料配比.Through the experiments, the mixture ratio of cemented crushed stone backfilling materials was optimized.充填料挤压输送泵是一种用于矿山充填的专用设备.The squeezed trans...
激光唱片极大地提高了录音的音质。Compact discs have brought about a vast improvement in recorded sound quality.我们总是不录音的时候演奏得好些—不过这也是常理，越该做好的时候越做不好，是不是？We always play better when we are not being recorded—but that's Sod's Law, i...