PI：汽油喷射

“汽油喷射”（Petrol Injection，常缩写为PI）是一种广泛应用于现代汽车发动机的关键技术，通过精确控制燃油喷射来提高燃烧效率和动力性能。在商业和产品领域，PI这一简称因其简洁明了而备受青睐，便于技术文档、产品说明及日常沟通中的高效使用。

Trouble Hunting and Mechanism Analysis of Electronically Controlled Petrol Injection(PI) System
电控喷射系统的故障诊断和机理分析
In this paper the research about the structure and working principle of engine's electronic petrol injection system is described. There are more advantages in the circuit system controlled by electrons that is managed by computer than in traditional carburator.
研究了汽油机电子燃油喷射系统的结构与工作原理，将计算机管理的电子控制回路与传统的化油器的性能进行了比较。
Introduced the signification, principle and producing method of the screw pump used in the production of petrol field, for instance, injection manner, traditional injection and one step injection production, and meanwhile this paper compared with the technology of the three production methods.
具体介绍了螺杆泵在油田生产中的意义、工作原理及生产方法，如压注法、传统注射法和一步法注射生产法，同时对三种生产方法的技术性能进行了比较。

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