The characteristics of operating mode feature parameters and control parameters for electronic controlled gasoline engine are introduced.

介绍了电控汽油机工况特征参数和控制参数的特点。

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Technical features of suburban railway, such as function feature, laying mode, distribution of stations, operating organization and operating speed are discussed.

阐述了市郊轨道交通的功能特征及其敷设方式、车站设置、运营组织和行车速度等技术特征。

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