PonaCOCA²⁸⁰¹³⁶⁺⁵ 基本例句 波纳¹⁰⁰ In the paper, we research the plasma pyrolysis of coal with the cultural module compounds and PONA which is often used in petrol chemistry. PONA is a mean to character the fractions of oil. 结合石油化工中族组成和煤化工中传统的模型化合物的研究方法,对煤的等离子体热解进行了研究。 jchemindustry