The experience of using r0 swarts sheath in patients with tortuous and prolonged aorta 鞘在升主动脉迂曲延长患者射频消融术中的新用途
3.
From the jade bamboo shoot peak which lies in the mouth of huanglong valley to the fan - shaped cave , the mountains rise and fall 一路，我们捡拾被流水被时光打磨圆滑了的卵石，细细品味那上面含混的图案，迂曲回环的纹理。
4.
Abstract : the author provides a method for solution of hydraulic tortuosity factor with gas permeability in cores according to the definition of hydraulic tortuosity factor and relations between pore radius porosity and permeability in porous media and give examples of some applications in reservoir experimental studies 文摘:根据水力学迂曲度因子的定义以及迂曲度因子与多孔介质中孔隙半径、孔隙度、渗透率的关系,提出了一种利用气测岩心渗透率求取岩心水利学迂曲度因子的方法,并例举了其在油藏实验研究中的几种应用情况。
