我还曾经亲眼目睹，一名球员在比赛过程中为了应对对手的全面违规封堵，故意用球狠狠打他。
I have also witnessed a player reacting to his opponent's international and illegal blocking by deliberately hitting him with the ball as hard as he could during the course of play.
目的：通过观察葱白提取物对猪冠状动脉球囊封堵冠状动脉前降支所致的急性心肌缺血模型的影响，证实其对急性心肌缺血的保护作用。
Aim: to observe the effect of the acute myocardial ischemia model of a swine's LAD that be block up from Ballon occlusion by Extraction of Fistular Onion Stalk.
微球膨胀粒径的大小决定着封堵机理，也是决定封堵效果的重要因素。
The size of polymer microspheres determines the plugging mechanism and the efficiency.
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