undercutting
... 滚柱式单向超越离合器rollerclutch 过度切割undercutting 函数发生器functiongenerator ...
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比较术前、术后6个月、12个月、24个月的呼吸困难度、肺功能及生活质量的变化来评价以结扎式切割过度气肿肺组织替代传统单侧LVRS的疗效。
The effects of ligation instead of traditional LVRS were evaluated by comparing the dyspnea, pulmonary function, living state before operation and 6-months, 12-months, 24-months after operation.
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