常見例句雙語例句PET is a non-invasive imaging technique that uses radioactivity emitted from injected tracer chemicals to measure and image biological activity.PET是一項(xiàng)非損傷的成像技術(shù)，它將示蹤跡注入血液利用其放射性來檢測生物活性竝成像。 返回 radioactivity tracer technique