Based on the theoretical analysis on brake process of automobiles, the calculation model of practical safe following distance is set up.
在对汽车制动过程理论分析的基础上，建立了实用安全跟车距离计算模型。
This is an exposition of the theoretical elements, the basic types and the process of establishment of China's macro-economy model.
本文阐述了中国宏观经济模型的理论基础、基本类型及建立的过程，并对其应用效果进行了分析。
Through the theoretical model and milling experiment they discuss the condition of producing forced vibration and chatter in milling process and the chatter characteristics.
通过所建理论模型及铣削试验讨论了铣削过程中强迫振动、颤振的产生条件及特点。
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