Conclusions coronary artery bypass grafting is a safe and effective method of treatment to elderly patients with coronary artery disease.
结论对于老年冠状动脉疾病患者，冠状动脉旁路移植术是一种安全、有效的治疗方法。
Grafting is a common method for modification of carbon blacks.
炭黑接枝是常用的炭黑表面改性方法。
The experiment of the prototype machine manifests that the two method 's integration can guarantee the reliability and security of the cornea grafting microsurgery robot system.
样机实验表明，这两种方法的结合为角膜移植手术机器人的可靠性和安全性提供了可靠的保证。
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