短語詞組短語phase feed back [電子]相位反饋gas phase back mixing 氣相返混two -phase back titration 兩相返滴定法digital phase ramp feed back 數(shù)字相位斜波反饋Liquid -phase microextraction with back extraction 液相微萃取feed -back phase 反饋相Offline Reorg Copy Back Phase 離線重組重入階段back feed phase [電子][自]反饋相位;反饋相back extension phase 運動的背部伸展階段 返回 phase back