烟斗使用的烟草,从制造商的观点,可分成两大类:芳香调味烟(Aromatics)及非调味烟(Non-Aromatics)。一般说来,新手通常从调味烟草抽起;而原本抽香烟、雪茄,转抽烟斗的,通常会选择非调味烟草,或称天然烟草。
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Technology Progress of producing BTX aromatics from heavy fraction of pyrolysis gasoline and correlative hydrodealkylation and non-aromatics hydrocracking techniques were reviewed in this paper.
综述了裂解汽油重质馏分增产BT X芳烃的技术进展以及与此相关的加氢脱烷基和非芳烃加氢裂解技术。
Petroleum is a complex mixture of non-aqueous and hydrophobic components liken-alkane, aromatics, resins and asphalt.
石油是一种疏水混合物例如:烷烃,芳香烃,树脂和沥青。
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