Where the [bleep] is the lead wire?

引线在哪里？

Calkins threads a small wire lead down into the heart.

卡尔金斯把一根小导线穿过心脏。

And that's up in the pulmonary artery. The wire lead acts like permanent paddles on a heart.

在肺动脉上。导线的作用就像心脏上的永久性划片。