应用分形学与粘弹性力学对含钙矾石和水镁石膨胀源的水泥硬化浆体的膨胀机理进行了研究与分析。
The expansion mechanism of hardened cement paste with double expansion sources of entringite and brucite was studied by using theory of fractal geometry and viscoelasticity.
病因多为心源性和脑源性猝死，冠状动脉粥样硬化是运动性猝死的一个主要原因。
Most of the etiological factors are sudden cardiac death and sudden cerebral death, and coronary atherosclerosis is one of the main causes for exercise-related sudden death.
结论隐匿型乙肝感染可能是部分隐源性肝癌、肝硬化的病因。
Conclusion The occult infection of HBV may be an important cause of cryptogenic cirrhosis and liver cancer.
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