1) two-stroke
二行程
2) 2 stroke cycle
二行程循环
3) two stroke engine
二行程发动机
1.
This paper comprehensive summarizes development course and current situation of numerical simulation of the gas exchange process in a two stroke engine.
概述了二行程发动机换气过程数值模拟研究的发展历程和现状 ,讨论了换气过程及数值模拟研究的特点 ,指出了存在的问题及今后进一步研究的方向。
4) two stroke cycle petrol engine
二行程汽油机
1.
Describes a new technique of stratified scavenging two stroke cycle petrol engine of use in reducing the consumption of fuel during scavenging.
提出了一种新的分层扫气方式，并介绍了在二行程汽油机上应用分层扫气技术，降低有效燃油消耗率，同时，使汽油机的动力性保持在原机水平和仍具有结构简单的特点。
5) the "72 guilds"
七十二行
1.
After the founding of the Association, the “72 guilds” were still active in social and political events, acting as a merchants combination whose status was equal to that of the Guangzhou General Merchants Association and often challenged its authority.
清末文献提到的广州的七十二行,往往是指广州各商业、手工业行会的联合体。
6) secondary behaviors
第二行为
参考词条
补充资料：活塞行程
活塞行程：活塞运行在上下两个止点间(即上止点和下止点)的距离称为活塞行程。它等于曲轴旋转半径长度的两倍。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。