Secondly, this paper designs vehicle management system, including system structural design, database design, functional design and object model design.
其次，本文对车管系统进行设计，包括系统体系结构设计、数据库设计、功能设计和对象模型设计。
The design of a rocker arm with low rotating inertia is one of the important development trends of the valve timing system structural design for a modern high -speed internal combustion engine.
低转动惯量摇臂的设计是近代高速内燃机配气系统结构设计的重要发展趋势之一。
The design of a rocker arm with low rotating inertia is one of the important development trends of the valve timing system structural design for a modern high -speed internal combustion engine.
低转动惯量摇臂的设计是近代高速内燃机配气系统结构设计的重要发展趋势之一。
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