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1)  intra-cycle speed fluctuation
循环内转速波动
1.
According to different combustion faults leading to different pressures in gasoline engine, a new method of diagnosing in-cylinder combustion exception with intra-cycle speed fluctuation and fuzzy cluster theory was developed in this paper.
同时,在自行研制的实时转速波动监测系统的基础上,对SY492Q-4型汽油机进行了循环内转速波动样本指标的测试,运用模糊聚类故障诊断的方法对多缸故障的症状进行了有效的识别。
2)  cyclic variation
循环波动
1.
A New Evaluation Method of Cyclic Variations;
一种评价循环波动的新方法
2.
The cyclic variations of combustion in a DI diesel engine with different fuel supply advance angles at idle condition are analyzed based on the measured needle valve lift and cylinder pressure.
测量了怠速工况下直喷柴油机在不同供油提前角时的针阀升程及气缸压力,计算分析了各参数循环波动变化情况。
3)  cyclical movement
循环波动
1.
The cyclical movement which has the cycle of 4 years just as long as the cycle of international economy is dug out, and the economic, political, social, science and techn.
以中国出口集装箱运价指数(CCFI)作为中国国际集装箱班轮运输市场运价测度指标,采用时间序列乘法模型对CCFI进行分析,发现CCFI近8年来存在着长期下降的趋势,对集装箱班轮运输市场春夏旺秋冬淡的季节性波动进行验证分析,并发掘出CCFI4年的循环波动周期恰恰与世界经济4年左右的周期相吻合这一规律,最后对将来可能使CCFI发生不规则变动的国际政治、经济和自然灾害等因素进行预测分析。
4)  Cycle-to-cycle variation
循环波动
1.
The engine combustion characteristics,heat release rate and their cycle-to-cycle variations are analyzed,and the cycle-to-cycle variations of combustion and heat release rate in nutural asperated and turbocharged diesel engines are.
试验以1台自然吸气直喷柴油机及1台相同排量的增压中冷柴油机为研究对象,采用高速数据采集系统测录不同负荷、中冷温度以及供油提前角下的多个循环的缸内压力及油管泵端压力,编程计算放热规律并进行循环波动研究,对两者的燃烧及放热规律循环波动进行比较。
5)  inner circulation velocity
内循环速度
1.
The results showed that the inner circulation velocity is proportional to the reactor height and the 0.
进行了空气提升内循环生物流化床反应器内液体内循环速度、有机物降解动力学、载体表面生物膜脱落与增长动力学的研究。
6)  circulative fluctuation
循环波动性
1.
In this paper,the time characteristic and circulative fluctuation of vibration signal measured on the diesel cylinder head are analysed emphatically and some measures have been proposed in order toobtain the steady characteristic p.
文中着重分析柴油机缸盖振动信号的时间特征和循环波动性,并提出消除波动性的一些措施,提高了故障诊断的准确性。
补充资料:循环波动

循环波动是指变动周期在一年以上近乎有规律的周而复始的一种循环变动,如经济周期、自然界农业果树结果量有大年小年之分等。研究宏观经济的循环波动问题,需要计算扩散指数和合成指数。

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