Results show that there are different optimum swirls in different ranges of diesel engine operating condition.
试验结果表明，发动机在高、低速区的最佳进气涡流强度是不同的。
The results presented in this study show that both the engine operating condition and health status have a significant effect on the monitored exhaust gas electrostatic signal.
研究发现发动机的工作状态和健康状态均对尾气静电信号产生重要影响。
We simulate engine performance in various operating conditions:in idle condition, it reduces the residual gas coefficient and increases airflow velocity, so that idle stability is improved.
模拟计算了各种工况下的发动机性能：怠速工况降低了残余废气系数，提高了进气流速，稳定性得到改善；
It is matters of common concern for shipping circles how to run at lower speed for the diesel engine and not to make it deviate from its optimum operating condition a lot.
如何做到降速的同时，又不使柴油机偏离最佳工况太多，是航运界共同关心的问题。
Listen for any audible air leaks, unusual noises, fuel pump buzz (a noisy pump may not be an indication of poor operating condition), engine rattles or knocks. E.
听是否有空气泄漏声，油泵嗡嗡声(油泵有声音并不意味着工作不良)，发动机卡嗒卡嗒声或爆震声。
Listen for any audible air leaks, unusual noises, fuel pump buzz (a noisy pump may not be an indication of poor operating condition), engine rattles or knocks. E.
听是否有空气泄漏声，油泵嗡嗡声(油泵有声音并不意味着工作不良)，发动机卡嗒卡嗒声或爆震声。
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