It was considered that the mechanical properties of PAN precursor was better when the orientation degree in crystalline region and overall orientation factor were about 0. 9 and 0.8, respectively.
综合考虑取向因子对纤维结构性能因素的影响，认为PAN原丝晶区取向因子约为0.9、总取向因子约为0.8时，纤维力学性能较好。
PAN L J, ZHANG B M, DAI F H. Loss factor of viscoelastic damping composite material under harmonic excitation [J]. Journal of Vibration and Shock, 2008, 27(2): 57-60.
[16]潘利剑，张博明，戴福洪。 简谐激励下共固化复合材料黏弹阻尼结构的损耗因子研究[J]。振动与冲击，2008，27（2）： 57-60。
The relationship of atrial plasma natriuretic factor (PAN F) in 100 hypertension patients and 50 normal ones for control were studied by echocardiography and radioimmunoassay.
应用超声心动图技术和放射性免疫测定法对100例高血压病患者左房血流动力学变化与血浆心钠素水平的关系进行分析研究。
The relationship of atrial plasma natriuretic factor (PAN F) in 100 hypertension patients and 50 normal ones for control were studied by echocardiography and radioimmunoassay.
应用超声心动图技术和放射性免疫测定法对100例高血压病患者左房血流动力学变化与血浆心钠素水平的关系进行分析研究。
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