Finally, this article gives the designs of meta system, main Subsystem and blackboard structure.
最后对元系统、主要子系统和黑板结构进行了原型设计。
The paintings are some of my originals for my designs and the blackboard is painted with blue blackboard paint - it makes me so much happier than a black one.
画是我设计时的作品，黑板刷了蓝色的黑板漆。相比较黑色我更喜欢蓝色的。
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