Conclusion: the epidural space block anesthesia is superior to regular injection analgesia, and has a protective effect on cardiovascular system after operation, worthy of applying to clinic.
结论：硬膜外阻滞法镇痛效果优于常规注射法，且对术后病人的心血管系统有明显的保护作用，值得临床广泛应用。
In addition, photo-set block copolymer and IPN system, with regular microphase domain structure, have higher tensile strength and elongation at break than those of heat-set polymers.
此外，嵌段共聚物和IPN光固化体系形成的相畴结构均一，其抗张强度和伸长率明显高于热固化体系。
In addition, photo-set block copolymer and IPN system, with regular microphase domain structure, have higher tensile strength and elongation at break than those of heat-set polymers.
此外，嵌段共聚物和IPN光固化体系形成的相畴结构均一，其抗张强度和伸长率明显高于热固化体系。
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