常見例句Zeolites are made up mainly of a framework of silicon, oxygen, and aluminum. 沸石的骨架主要由硅、氧和鋁原子構(gòu)成。Those obtained zeolites were characterized by XRD, SEM, MAS NMR and BET. 采用XRD、SEM、MAS NMR、BET等方法對所制備的分子篩進行了物化表征。The development prospects for modification of USY zeolites were put out. 并對以后USY分子篩的改性進行了展望。This paper discussed the resources about natural zeolites on Internet, and introduced the ways to search for them. 本文主要介紹了INTERNET上與天然沸石有關(guān)的化學(xué)化工信息資源,并且初步討論國際互聯(lián)網(wǎng)和國內(nèi)互聯(lián)網(wǎng)上天然沸石信息量。Besides, the conversion of ethanol have been found to be dependent on the amount of surface acid sites on zeolites. 乙醇轉(zhuǎn)化率與分子篩表面酸量有關(guān)。It is shown that the acid sites of the zeolites play an important role on coke deposition. 酸強度越高,越容易積炭,酸量越大積炭越多。 返回 zeolites