The Geiger counter registered a high concentration of radioactive particles.蓋革計(jì)數(shù)器示出放射性粒子的高濃度.This is a Geiger counter for detecting radioactivity.這是一種蓋革計(jì)數(shù)管,用來(lái)測(cè)量輻射的.By using phenomenological method, Moritz Geiger found ax...