基本解釋[地球科學(xué)]放射性跡示法英漢例句雙語(yǔ)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(lái)檢測(cè)生物活性竝成像。radioactivity tracer technique更多例句專業(yè)釋義地球科學(xué)放射性跡示法