短語詞組短語incubation n period 潛伏期rabies incubation -period 狂犬病潛伏期extrinsic incubation period 外潛伏期Incubation period of survival 育成期成活率dark incubation period 黑暗時長external incubation period 外潛伏期extra -incubation period 外潛伏期egg incubation period 卵孵育時間symptomless incubation period 無癥狀的潛伏期 返回 incubation period