方法离体血管环实验及在体心功能实验。
METHODS Organ bath experiment and whole cardiac function experiment were used.
用离体血管环技术观察肺动脉环收缩张力的变化。
The tension changes of pulmonary artery were monitored in vitro.
前言：目的：介绍一种离体血管环的实验装置和方法。
Objectives: an apparatus and method for the experiment of vessel ring ex vivo was discussed.
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