短語(yǔ)詞組短語(yǔ)biological pre -treatment 生物預(yù)処理pre -deformation treatment 預(yù)變形処理Complex pre -treatment 前処理複襍Pre -treatment Auxiliaries 前処理superplastic pre -treatment 超塑預(yù)処理reducing pre -treatment 預(yù)還原処理 返回 pre-treatment