麻省理工开放式课程将会一直是免费且开放性的数位出版品，而您的赞助(不论金额大小)都能帮助我们永续地出版高品质的麻省理工学院课程。
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对开放式数控系统进行层次模块化设计：物理层、软件层设计。介绍了CJK6 132A车床闭环数控系统的特点及开放性。
The physic layer and the software layer of the open NC system's layering and modeling design, the characteristic and the open characteristic of CJK6132A lathe Close loop NC system are introduced.
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