pipe constriction

• 管道收缩

pipe constriction的用法和样例：

例句

1. There was a small pleural effusion and no evidence of pericardial constriction.
   有少量胸腔积液，没有心包收缩的证据。
2. Thus stimulation of one retina will normally invoke pupillary constriction in both eyes.
   刺激一侧视网膜可引起双眼的瞳孔收缩。