After the catalyst is adopted, high conversion rate of hydrocarbon and high once through yield of ethylene and propylene can be achieved.
采用本发明的催化剂可获得较高的烃类转化率和乙烯丙烯单程收率。
Through the study of the paper we once again proved that frequency conversion technology in the environment control system application is feasible.
通过本文的研究，再次验证的变频技术在轨道交通环控系统应用的可行性。
Through the study of the paper we once again proved that frequency conversion technology in the environment control system application is feasible.
通过本文的研究，再次验证的变频技术在轨道交通环控系统应用的可行性。
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