direct vision heart operation

• 心脏直视手术

direct vision heart operation的用法和样例：

例句

1. In open heart surgery, perioperative arterial pressure is an important index for Circulatory monitoring.
   摘要心脏直视手术围术期动脉血压测量是循环监测的重要指标。
2. In cardiac operation,it is used for attracting the blood in left atrium through atrial septal or upper lung vein,inserting in left atrium.
   在心脏直视手术中，经房间隔或左上肺静脉，插入左房，吸引左房内的血液。