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...
A new implementation method of the TDM - FDM transmultiplexer ( TMUX ) is presented , which is more efficient in computation.本文提出一种高效率的TDM-FDM复用转换器 ( TMUX ) 新实现方法.N son - carrier waves were modulated respectively with N ...