As such, they require a relatively long amount of time to achieve combustion in the engine when it restarts.
因此，他们需要时间来实现在发动机中燃烧相对较长的数额时，重新启动。
The paper introduces a new method of measuring combustion time with CAT technique for solid rocket engine.
介绍一种应用CAT技术确定固体火箭发动机燃烧时间的新方法。
Pollution: Stirling engine combustion heating process under atmospheric pressure is usually a long time in the combustion process, it burns more completely and co emissions in small amounts.
低污染：史特林引擎之燃烧供热过程通常为在一大气压之下长时间的燃烧过程，故燃烧较为完全且废气中CO含量很少。
Electric cars may be coming after 20years and it is still the era of internal combustion engines in the current time. But we can already find the internal combustion engine for the end.
电动汽车的时代也许还要20年才能到来，目前的时间仍然是内燃机的时代，但我们可以看到内燃机却已是强弓之末。
But the fuel starting injection pressure will turn low gradually when the operational time of the diesel engine increases. This will cause worsening of the combustion process and fuel economy.
但是随着柴油机使用期的增长，启喷压力会逐渐降低，导致燃烧过程恶化，经济性下降。
Start the engine in the right time for proper combustion chamber supply of clean air and fuel. if the fuel systems are speeding up, before starting to press the "clear" button.
启动柴油机需要在准确的时间向燃烧室供给适当数量的干净的空气和燃油。如果燃油系统装有超速停止器，在启动前应按下“复位”按钮。
The ignition energy, efficiency, burning time and main chemical reactions of the pulsed corona discharge ignition(PCD) used on internal combustion engine are discussed in detail.
介绍了内燃机点火技术的研究进展，阐述了内燃机脉冲电晕放电点火新技术所涉及的点火能量、点火效率、燃烧时间和相关化学反应等问题。
At the same time, exhaust pollution of internal combustion engine is a big issue on the environment protection, which is directly related with quality of the fuel.
与此同时，内燃机的排气污染是环境保护中的一大难题，而它与燃料品质有着密切关系。
In this thesis, 3-d coupling vibrations of internal combustion engine shafting are presented basing on dynamic stiffness matrix and precise time-integration method.
本论文以动态刚度矩阵和精细时程积分法为基础，分析了内燃机轴系的三维耦合振动形式。
In this thesis, 3-d coupling vibrations of internal combustion engine shafting are presented basing on dynamic stiffness matrix and precise time-integration method.
本论文以动态刚度矩阵和精细时程积分法为基础，分析了内燃机轴系的三维耦合振动形式。
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