The arms can be driven rotatingly in mutually synchronous manner, each by its own motor, which motors are coupled in a master-slave connection.

臂可被 驱动以相互同步的方式旋转，其中每一个臂由它自己的马达驱动，这 些马达以主从连接关系结合在一起。

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With walls covered in calendars and color charts, and shelves and tables filled with computers, blocks, pegboards and books, it's a place to begin learning literacy, math and writing as well as to master fine motor skills and be social.

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