As the emission regulations are getting more and more rigorous, the importance of OBD technology in vehicle emission control is emerging.

随着排放法规的要求越来越严格，OBD技术在机动车排放控制领域的重要性日益突现。

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Features and emission conditions of gasoline engine cold starting process and the significance of cold starting control technology to the future emission regulations are discussed.

论述了汽油机冷起动工作过程的特点、排放状况及冷起动控制技术对满足未来排放法规的意义。

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Solid mixed potential gas sensors will become the indispensable oxygen sensor applied for automobile emission control and environment gas monitoring due to increasingly stringent emission regulations.

由于日益严格的排放法规，固态混合电势传感器将成为汽车尾气控制和环境气体检测必不可少的传感器。

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