短語(yǔ)詞組短語(yǔ)stable e tracer isotope 穩(wěn)定示蹤同位素stable isotope tracer technique 穩(wěn)定同位素示蹤術(shù)enriched stable isotope tracer 濃集的穩(wěn)定同位素示蹤stable isotope tracer 穩(wěn)定同位素示蹤enriched stable isotope tracer technique 富集穩(wěn)定性同位素示蹤技術(shù) 返回 stable tracer isotope