Improvement of cold starting and cold idling circulation(engine warming up)combustion process of motorcycle gasoline engines by dual-spark plug-based rapid burning system was introduced.

为了改善电喷汽油机冷起动及冷态怠速运转（即暖车过程）性能，自行研制了基于高能双火花塞点火的快速燃烧系统。

In this paper a kind of contol approach used to detect, control and optimize the performance parameters of two-stroke gasoline engines is introduced.

本文介绍了对二沖程汽油发动机性能参数进行检测、控制和优化的一种控制方法。

To boost fuel economy and lure buyers, Geely plans to equip the new cars with turbo-enhanced one-liter and other small-displacement gasoline engines and price them competitive ly.

为提高燃油效率、吸引消费者，吉利计划在新车当中采用一升涡轮增压（还有其他较小的改动）汽油发动机，并制定出有竞争力的价格。

Although gasoline engines have improved a lot, they are still not very efficient at turning chemical energy into mechanical power.

虽然汽油发动机改进了许多，但是，在化学能量转变为机械能量过程中，发动机的效率仍然不高。

This VVT system is suitable for high-speed automotive gasoline engines with DOHC.

该系统适合于顶置双凸轮轴车用高速汽油机。

We all know that diesel engines, in principle, work in the same way as gasoline engines do.

我们都知道柴油机和汽油机的工作原理是相同的。

Using high energy ignition technology can greatly improve the power performance and fuel economy of gasoline engines and reduce the emissions.

采用高能点火技术能够提高汽油机动力性和经济性，降低排放。

Internal combustion gasoline engines run on a mixture of gasoline and air. The ideal mixture is 14.7 parts air to one part of gasoline (by weight.)

内燃机发动机是通过汽油和空气的混合而运行的，理想的空燃比是14.7份质量的空气和1份质量的汽油混合。

Improved gasoline engines can burn both diesel and gasoline. Thereby, diesel engines can be eliminated, and oil pump and oil nozzle devices of high accuracy are no longer adopted.

经改进后使汽油机既可烧柴油、又可烧汽油，从而可淘汰柴油机，不需再采用高精度的油泵油嘴装置。

There are two kinds of engines in use: gasoline engines and diesel engines.

目前汽车用发动机主要有汽油机和柴油机两种。

Four-stroke gasoline engines in motorcycles.

四沖程汽油在摩托车发动机。

That may be because they began manufacturing expensive but fuel-efficient models of gasoline engines in China.

这可能是因为它们开始在中国生产昂贵但却节能的汽油发动机车辆。

Oil analysis techniques have been effectively used on diesel and gasoline engines for many years.

润滑油分析技术已经有效地使用在柴油机及汽油机上达数十年之久。

First of all, the reasons why the combustion efficiency of gasoline engines is lower than diesel were analyzed theoretically.

本文首先从理论上分析了传统汽油机热效率低的原因，指出其「单点点火、火焰传播」的燃烧方式是癥结所在。

The power, economy and emission performance of the gasoline engines are deteriorated remarkably when they are operated on a plateau region.

汽油机在高原地区运行时，动力性、经济性及排放性能大幅下降。

Most of the studies of ISG hybrid technology are conducted on gasoline engines and the focus is put on reducing fuel consumption.

目前大部分对IS G混合动力技术的研究结合汽油机进行，并主要围绕降低油耗开展。