短語詞組短語gradual institutional transition 漸進式制度變遷gradual l transition 緩變結gradual massing transition 逐次躍遷gradual transition model 漸進體制轉型模式gradual transition invasion 漸變侵入gradual transition detection 漸變檢測Gradual transition screw 漸變變流螺桿the gradual transition 漸進轉型Earlywood to latewood gradual transition 早材過渡到晚材緩變 返回 gradual transition