混合气偏浓，循环变动明显减小。
Cycle-to-cycle variations decrease markedly with richer mixture.
论文还对在怠速工况燃烧循环变动进行了统计分析。
This paper also discussed the combustion cyclic variability at idle condition.
本文对汽油机最高爆发压力的循环变动进行了研究。
This paper studied the cycle-to-cycle variation of in-cylinder peak pressure in gasoline engines.
介绍了运用高速纹影摄影对火花点火发动机循环变动特性的研究。
This paper studies the characteristics of cyclic combustion variation in spark ignition engines by using high speed schlieren photographs.
计算了双燃料发动机最高燃烧压力循环变动，找出了它随引燃油量变化的规律。
The variation of maximum cylinder pressure from cycle to cycle is evaluated, and the changing rule of the pilot diesel flow rate is also found out.
通过发动机台架试验，得到了进行天然气发动机燃烧循环变动实验研究的经济样本容量。
Through experiment, we get the economic cycles of the sample size for the research of the cyclic variations of CNG engine.
将计算结果和试验结果进行了比较，证实了用这个模型可以较精确地预测燃烧的循环变动。
Computation results were compared with experimental findings and it is verified that this model can quite accurately predict the combustion variations.
醇类混合燃料的着火延迟期、燃烧持续期、燃烧循环变动都大于汽油，放热规律与汽油相似。
The inflammation retardation period, combustion continuance period and combustion cyclic variability of compound alcohol fuels is greater than that of gasoline.
本文改进了一个火花点火发动机的准维计算模型，并对燃烧的循环变动进行了理论计算研究。
This paper modified a quasi dimensional model and utilized it to study theoretically the combustion variations in spark ignition engines.
本文针对CA6102发动机燃烧慢、循环变动率偏大等问题，对进气道和燃烧室进行了改进。
The intake port and combustion chamber of CA6102 SI engine were improved aiming at its slow burn-rate and big cyclic variability in this paper.
由于天然气的燃烧速率较慢，易产生燃烧循环变动现象，采用稀燃技术时会加剧燃烧循环变动。
Because the slow rate of combustion of natural gas, it's easy to produce the phenomenon of cyclic variations, when taking lean burn technology, the cyclic variations will be increased.
在发动机试验台上，用CB-466燃烧分析仪对四气门汽油机低速低负荷燃烧压力循环变动进行了试验研究。
The cyclic variation of the combustion pressure in the cylinder of a four-valve gasoline engine was analyzed at low speed and light load with the CB-466 combustion analyzer on the engine test-bed.
对r 6100 Z Q型车用柴油机的循环变动特性进行了测试，结果表明，该机存在着不可忽视的循环变动。
The characteristics of operating cycle variations for a model R6100ZQ automotive diesel engine are tested and measured.
在发动机试验台上，利用CB-466燃烧分析仪研究了整体式和分体式进气道对四气门汽油机燃烧压力循环变动的影响。
The effects of integrated and separated intake ports on cyclic variation of combustion pressure in a four-valve gasoline engine were analyzed with a CB-466 combustion analyzer on the engine test-bed.
本文以天然气发动机燃烧循环变动为研究对象，通过试验与仿真方法，对燃烧循环变动的影响因素及诱发因素进行了研究。
This paper take the cyclic variations as the research objectives, analyses the factors which arose the cyclic variations of CNG engine, through experimental and simulation methods.
注意，通过一点儿小小的变动，可以计算出一个给定行参与了多少个循环。
Note that with a small change, one could count in how many cycles a given row participates.
构成全球碳循环的一个关键环节河流碳的输出及循环过程与近岸水域环境、海洋碳库变动及全球气候系统紧密相关。
The export and cycle processes of the riverine carbon are closely related to coastal zone environment, dynamics of the ocean carbon pool and the global climate system.
一方面，经济活动发生在一定的生态环境中，与生态环境进行着往复循环的能量与物质的转化，势必会引起生态环境的变动。
On the one hand, economic activities are bound to happen in a certain ecological environment. It will undoubtedly result in some changes in ecosystem.
一方面，经济活动发生在一定的生态环境中，与生态环境进行着往复循环的能量与物质的转化，势必会引起生态环境的变动。
On the one hand, economic activities are bound to happen in a certain ecological environment. It will undoubtedly result in some changes in ecosystem.
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