常見例句Product name: Multiple structures PPF film. 產(chǎn)品名稱:多維結(jié)構(gòu)打孔膜.And PPF can be applied in all types of economy. 似乎和討論中的問題有關(guān), 大家可以一看再作討論!ConclusionThe study showed that PPF and ALCAR... 結(jié)論PPF和ALCAR確能改善老年動物的學(xué)習(xí)記憶能力。It was resulted that the method was practicable and significantin modifying the Chinese standard of PPF testing. 測定試驗結(jié)果表明,該方法是可行和實用的。因而,對修訂透性測定的國家標(biāo)準(zhǔn)具有指導(dǎo)意義。This paper penetrates on a profound and detailed study on the parameter design of PPF. 本文對無源電力濾波器的參數(shù)設(shè)計方法進行了深入的研究。The operating principle of a novel push-pull forward(PPF) converter is introduced. 主電路采用推挽正激變換器和雙降壓式逆變器。 返回 ppf