Schemes of variable compression ratio (VCR), variable exhaust gas recirculation (EGR), variable exhaust valve timing, and EGR with stratification by tumble charge flow are recommended.
推荐可变压缩比（VCR）方案、可变废气再循环率（EGR）方案、可变排气门关闭时刻方案，以及废气再循环滚流分层充气方案等。
The annual total cost of optimum design decreased by 20.8% than that of conventional design without EGR, 14.3% than that of conventional design when exhaust gas recirculation ratio was 0.2.
对湿空气出口温度和废气循环比进行优化设计，比无废气循环的常规设计节省年总费用20.8%，比循环比为0.2时的常规设计节省年总费用14.3%。
This paper discusses the despread of low signal to noise ratio of the direct sequence (DS) spread spectrum signals using intermediate-frequency recirculation summation loop (IFRSL).
本文讨论了用中频积累法实现低信噪比直接序列扩频信号的解扩。
Mixture temperature is examined to analysis the effect of the recirculation ratio in the combustion and the inner heat transfer process.
分析了燃烧和内部换热过程带来的不同再循环率下的混合物温度变化。
The operating conditions, such as pressure, recirculation rate, concentration ratio, temperature etc. have been optimized. The washing method of membrane is also studied in this paper.
对超滤的操作压力、膜面流速、浓缩比、温度等操作条件进行了研究，并对膜的清洗作了进一步研究。
The operating conditions, such as pressure, recirculation rate, concentration ratio, temperature etc. have been optimized. The washing method of membrane is also studied in this paper.
对超滤的操作压力、膜面流速、浓缩比、温度等操作条件进行了研究，并对膜的清洗作了进一步研究。
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