practical necessity 現(xiàn)實必要性 實際需求practical musicianship [藝術(shù)學(xué)]演奏科practical materialism [哲學(xué)]實踐唯物主義實踐的唯物主義[自然科學(xué)]實踐唯物主義practical level 實際水平practical knowledge 實踐性知識，實用性知識；實務(wù)知識practical joker 惡作劇者practical joke n. 惡作劇practical insolvency [經(jīng)濟學(xué)]實際無償付能力實際無力償付practical hearing level [醫(yī)藥科學(xué)]實用聽力級practical guide 實用向?qū)?；實用手?/p>practical framework 實踐范圍practical filtration efficiency [交通運輸工程]實際濾波效率practical experience 實務(wù)經(jīng)驗，實踐經(jīng)驗，實際經(jīng)驗practical english writing [語言學(xué)]英語應(yīng)用及寫作[計算機科學(xué)技術(shù)]實用英文寫作practical efficiency [經(jīng)] 實際效率practical education 實用教育practical criticism 實用批評practical considerations 實際考慮，實際問題practical conceptualism [法學(xué)]實用概念主義practical clinical chemistry [醫(yī)藥科學(xué)]實用臨床化學(xué)