piston engine短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 活塞发动机 In this paper the current status of development and exploitation of Wankel rotary piston engine in china and analysis of some key technologic problems of rotary piston engine are carried out. 本文主要介绍我国三角转子发动机目前的研制和使用情况,并对转子机研究中的某些关键技术问题进行了分析。 iciba