polarcardiography

例句：

1. 1. Polarcardiography is a technique used to study the electrical activity of the heart in extreme cold environments.
   极地心电图学是一种用于研究在极端寒冷环境中心脏电活动的技术。
2. 2. During his research, he discovered that polarcardiography could help diagnose conditions such as myocardial infarction.
   在他的研究中，他发现极地心电图学可以帮助诊断心肌梗塞等疾病。
3. 3. The study found that polarcardiography could provide valuable insights into the functioning of the heart in cold weather conditions.
   研究发现，极地心电图学可以为了解心脏在寒冷条件下的运作提供宝贵见解。