比四冲程发动机制造成本更低。
少比四冲程和二冲程发动机的振动。
四冲程汽油在摩托车发动机。
等于或优于四冲程燃油效率。
比四冲程发动机重量更轻。
这就是常用的四冲程循环。
大多数汽车发动机是以四冲程原理工作的。
直列，水冷，四冲程，直喷燃烧室。
汽车发动机除了四冲程循环是否还有其他循环？
Are there any other cycles besides the Otto cycle used in car engines?
四冲程，四缸，水冷。
针对四缸四冲程汽油发动机，建立发动机数学模型。
An engine model is established for the 4-cylinder 4-stroke gasoline engine.
水冷，四冲程，横向四缸，双凸轮轴，4缸，每阀。
Liquid cooled, four stroke, transverse four cylinder, DOHC, 4 valve per cylinder.
碳氢排放和油耗有所降低，但仍高出四冲程发动机很多。
Hydrocarbon emission and fuel consumption are decreased to some extent, but the values are still high comparing to four-stroke engine.
这样说来，两冲程发动机的点火次数是四冲程发动机的两倍。
Thus, a two-cycle engine fires twice as often as a four-cycle engine.
飞机由一台360马力风冷、四冲程汽油活塞发动机提供动力。
The aircraft is powered by a 360hp air-cooled, four-stroke, petrol (gasoline) piston engine.
同时讨论了催化转化器与二冲程、四冲程摩托车匹配的问题。
In the meantime, the matching about catalytic converter with two stroke and four stroke motorcycle is discussed.
适用于苛刻的使用环境下的各种进口及国产高档四冲程摩托车。
Suitable for the use of harsh environment of various kinds of imported and domestic high-grade four stroke motorcycle.
符合国家GB2820标准，使用工业柴油，四冲程，涡轮增压。
In line with the national standard GB2820, the use of industrial diesel, four-stroke, turbocharged.
由于二冲程和四冲程发动机，自行车是一种权力的道路的一个缩影。
With two-stroke and four-stroke engines, the bike is an epitome of power on road.
最大化的权力和改进了所有两个周期和四冲程汽油发动机的性能。
Maximizes power and improves performance in all two-cycle and four-cycle gasoline engines.
二冲程和四冲程发动机的区别：大多数链锯和摩托艇使用的是二冲程发动机。
What is the difference between a two-stroke and a four-stroke engine? Most chain saws and boat motors use two-stroke engines.
四冲程发动机的工作循环是以活塞在上止点、进气门打开为开始的。
The cycle of operation of the four-stoke engine begins with the piston at TDC and the intake valve open.
转子活塞发动机用的是四冲程循环，但是它们和四冲程活塞发动机有很大不同。
Gas turbine engines use the Brayton cycle. Wankel rotary engines use the Otto cycle, but they do it in a very different way than four-stroke piston engines.
基于四冲程发动机的工作原理，用键合图对一四缸汽油机进行了建模。
Based on the working principle of the four-stroke engine, we model the four-cylinder gasoline engine using bond graph technique.
本文分别介绍了自然进气四冲程柴油机和四冲程增压柴油机的改装方案。
This paper presents the refit methods for both supercharged and unsupercharged four-stroke diesel engines.
四冲程循环发动机中，四个冲程的固定顺序是：进气、压缩、作功和排气。
The four strokes in the four-stroke-cycle engine, in their proper order, are intake, compression, power, and exhaust.
四冲程循环发动机中，四个冲程的固定顺序是：进气、压缩、作功和排气。
The four strokes in the four-stroke-cycle engine, in their proper order, are intake, compression, power, and exhaust.
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