ObjectiveTo study the causes and prevention of stomach adynamia after pericardial devascularization ( PD ).目的探讨贲门周围血管离断术 ( PD ) 后胃动力障碍的原因与预防.The non exposure of the fracture zone means that additional devascularization o...
电晕放电和刷毛状放电只是从放电点处逐个地发生.The corona or brush discharge, would transfer from point to point.在存在电晕的区域, 形成了大量正离子和负离子.In the region where the corona exists, large numbers of positive and negative ions are formed.利用直流高压电晕产生的非平衡...