是一种国家安全策略。是指利用一定的措施来防范可能因为各种原因带来的危害国家安全的行为。
本实验说明持续灌注氧合心麻液是一种安全、有效的心肌保护方法，可避免心脏冷损伤及缺血心肌再灌注损伤。
The study shows that continuous oxygenated warm blood cardioplegia perfusion coronary artery is a safty, effective method, which can prevent clod injury and ischemic reperfusion damage.
结论持续硬膜外阻滞分娩镇痛及产后镇痛其镇痛效果确切、安全、副作用小，可明显缓解产妇的疼痛感，改善产妇的精神状态，促进母乳喂养。
Conclusions Continuous epidural anesthesia and postpartum analgesia are effective and safe with little side effects in pain relief, improving the mental state, and promoting breast feeding.
本次会议的主题是“构建负责任伙伴关系，促进可持续增长与安全”，具有很强的现实意义。
The theme of this meeting, Responsible Partnership for Sustainable Growth and Security, is highly relevant.
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