The controlling principle of thyristor control linear reactor of TCR in the reactive power dynamic compensator of microcomputer was expounded, and establishment of its mathematics model was discussed.
阐述了微机无功动态补偿器中tcr晶闸管控制线性电抗器的控制原理，并对其数学模型的建立进行了讨论。
Study the bearings parts blemish causes the round to the characteristic and regulations of the structure resonance, establishment mathematics physics model.
研究轴承部件缺陷引起轮对结构共振的特征及规律，建立数学物理模型；
The article draw up to match through a curve and estimate with parameter to establishment mathematics model according to time sequence theories, Carry on the analysis to the current urea market.
本文根据时间序列理论通过曲线拟合和参数估计来建立数学模型，对当前尿素市场进行分析。
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