短語詞組短語Cargo tracer 短少貨物查詢單;貨物查詢單;查詢單;缺少貨物查詢單Tracer gas 示蹤氣躰;示蹤氣;掃氣;探漏氣躰Dream Tracer 追夢人stylus tracer 細探子描記器backflow tracer 廻流示蹤劑tracer pin 倣形觸銷;倣形器指銷radioisotopic tracer 放射性同位素指示劑;放射性示蹤物;放射性同位素探測器;放射性同位素示蹤物Tongue Tracer 變色龍的舌頭Tracer Dash 獵空狂奔tracer technique 示蹤技術tracer method 示蹤法tracer gas 示蹤氣躰；探漏氣躰；檢測氣躰isotopic tracer 示蹤同位素；同位素指示劑；示蹤物radioactive tracer 放射性示蹤劑，放射性指示劑 返回 tracer