结论:胃左静脉分流指数是评价食管静脉重度曲张的好指标.Our results suggest that the LGVSI is aDoppler ultrasound parameter in evaluating severity of esophageal varices.目的探讨内源性一氧化氮与肝硬化食道 静脉 曲张的关系及临床意义.Objectives To study the relation of nitric oxide...
The velocity of the fluid is inversely proportional to the spacing of the streamlines.流体的流速与流线的间距成反比.The amount of force needed is inversely proportional to the rigidity of the material.需要的力度与材料的硬度成反比.The availability of...