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1·It indicated that the imbalance of endothelium derived relaxing factor (NO) and the endothelium derived constricting factor (ET) was a major cause of vasospasm after SAH.

结果表明，脑血流内皮舒张因子和内皮收缩因子之间的平衡紊乱是SAH后脑血管痉挛发生的机制之一。

2·Conclusion: the protective mechanisms of YQTLP were related to inhibit lipid peroxidation, protect endothelium-derived relaxing factor and adjust the fibrinolytic activities.

结论：益气通络丹的疗效机制与抑制脂质过氧化、保护内皮依赖性松弛因子和调节纤溶活性有关。

3·The finding of endothelium derived relaxing factor(EDRF) and the illumination of its chemical identity, bio-synthesis and physiological functions promoted greatly the research on vascular disease.

内皮细胞衍生的舒张因子（EDRF）的发现及其化学本质、生物合成及生理功能的阐明，对心血管病研究产生深远影响。

4·The surface of bitumen pavement is always affected by climate factor and some kinds of load that lead to some road diseases such as crazing, relaxing, distortion and so on.

沥青道路面层受到各种气候因素、荷载作用的影响，经常发生开裂、松散、变形等病害。