扩钻 meaning in English
counterboring
Examples
- Risk factors are old age , poor cardiopulmonary compliance , pathological fracture , osteoporosis , large amount of cement , excessive pressurization with cement gun , and a previously undis - trubed intramedullary canal
危险因子包括老年人，术前较差的心肺状态，病理性骨折，骨质疏松，使用大量的骨水泥或骨水泥枪以进行骨髓腔管内加压作用，未曾被扩钻过的骨髓腔。 - In joist ' s temporary fixation , if temporary bolt and drill nail are used , amount of them should be calculated as flowed specification : the amount should be no less than 1 / 3 of all holes ; at least , two temporary bolts should be used ; amount of drill nail should be no more than 30 % of temporary bolts bolted ( grade a , grade b ) hole shouldn ' t be fixed with drill nail
桁架临时固定如需用临时螺栓和冲钉，则每个节点处应穿入的数量必须由计算确定，并应符合下列规定：不得少于安装孔总数的1 / 3 ；至少应穿两个临时螺栓；冲钉穿入数量不宜多于临时螺栓的30 % ；扩钻后的螺栓（ a级、 b级）的孔不得使用冲钉。 - Adequate preoperative fluid hydration , intensive hemodynamic monitoring , ready - prepared blood and vasopressor drugs , inspiration of 100 percent oxygen , and copious irrigation of marrow debris after reaming are useful prophylactic methods to lower the catastrophic complication during cementation
足够的术前水分补给，手术中精细的生命徵象监视，随时准备好的血液及增压药物以备不时之需，呼吸纯氧以预防低血氧症，在骨髓腔管被扩钻后使用大量的水清洗骨髓腔管内的杂质，这些是降低骨水泥心脏血管衰竭并发症发生的有效方法。