瓣膜

• You need to relax before you pop a valve
  你要放松,否则迟早把瓣膜给气出来
• Development of the c - l pugestrut heart valve prosthesis
  型短柱人工机械心脏瓣膜的研制
• This is the same with transplanted heart ales
  对于移植的心瓣膜来说，同样存在这个问题。
• Composed of a single valve or piece . used of a shell
  单瓣的由单个瓣膜或部分组成的。用于壳
• Perioperative nursing experience in heart valve replacement
  心脏瓣膜置换术围手术期护理体会
• Diagnostic value of cdfi in senile valve disease
  彩色多普勒血流显像对老年性瓣膜病的诊断价值
• The evaluation of quality and safety for the artificial heart valves
  人工心脏瓣膜质量及安全性评价
• Clinical analysis on 39 cases of degenerate valve diseases in the aged
  老年性退行性心瓣膜病39例分析
• Howeer , there are seeral problems with artificial heart ales
  然而，对于人造心瓣膜来说还是有许多的问题。
• All the physical activity had worsened a congenital valve defect
  用力过猛使得他天生的心脏瓣膜缺陷恶化。