Key technologies of electric vehicle include power system, vehicle body structure design and analysis, overall vehicle control and energy management system etc.
电动客车的关键技术包括动力系统、整车车身结构设计与分析、整车控制和能量管理系统等。
Missile carrying on the wing tip causes the wing structure design and analysis to face many challenges, such as structural vibration response and aeroelastic response.
飞机机翼挂装翼尖导弹对机翼结构设计和结构分析提出了诸多全新课题， 如结构的振动响应和气动弹性动响应。
These are tools that the oo designer puts to use in order to structure the analysis, the design, and the implementation, but they aren't central to what makes an oo program object-oriented.
这些是OO设计人员用来构成分析、设计和实现的工具，但它们并不是使程序面向对象的主要部分。
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