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解答:1.Duplication of bands in this region is also shown by trifluoropropyne and perfluoro 2 - butene.
三氟丙炔和全氟丁烯-2 在這個(gè)區(qū)域也出現(xiàn)雙重譜帶.
2.Duplication of bands in this region also shown by trifluoropropyne and perfluoro 2 - butene.
三氟丙炔和全氟丁烯-2 在這個(gè)區(qū)域也出現(xiàn)雙重譜帶.
3.Acid treatment of catalyst enhanced isobutene conversion of MTBE reaction.
酸處理也可增大β子篩催化合成mtbe反應(yīng)的異丁烯轉(zhuǎn)化率.
4.Other suitable types of wax are maleic anhydride and bisamide modified wax.
其他合適的蠟類型和bisamide順丁烯二酸酐改性蠟.
5.Butane and butylenes has the same characteristic with propane and propylene.
丁烯與丁烷表現(xiàn)出與丙烯、丙烷相似的特性.
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