The system model consists of three levels, including initial planning, decision making and detail planning.
系统模型由三个层次组成，即初步规划层，决策层和详细规划层。
The model is composed of three levels, namely motion function, mechanism mapping and mechanism combination.
第三章提出了运动功能到机构映射、机构映射到机构组合的层次运动方案设计模型。
The model is composed of three levels, namely motion function, mechanism mapping and mechanism combination.
第三章提出了运动功能到机构映射、机构映射到机构组合的层次运动方案设计模型。
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