Modeling the head becomes easier when you model also the neck and shoulders and modeling the hands is easier when you model them together with the rest of the arm.

头部建模变得更加容易，当你的模型也脖子和肩膀，手中建模更容易当你与扶手模型一起。

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Modeling is the basis for the robots action planning, meanwhile it is a key technology bottle-neck from structured to unstructured.

环境建模是机器人动作规划的基础，同时也是从结构化迈向非结构化环境的关键技术障碍。

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